Training guide
Your muscles need time between hard sessions, but not necessarily whole days off. The American College of Sports Medicine advises at least 48 hours between strength sessions, and experts on overtraining advise at least one full rest day a week. No trial has found a magic number of rest days, and true overtraining is rare in people who lift.
This guide covers how long recovery takes, what to do on rest days, when a lighter deload week helps, the real warning signs of overtraining, how much sleep matters, and what a week off costs you: very little.
The American College of Sports Medicine advises at least 48 hours between strength sessions, though the trial evidence behind that number is thin: with weekly sets matched, training 3 or 6 days a week built similar strength and muscle.
No trial has tested the number. Experts on overtraining advise at least one full rest day a week. Our plans keep at least one rest or easy day a week, and a day between hard sessions for the same muscles.
Light activity on rest days is good for your health and eases stiffness, but no recovery method has been shown to beat simple rest. Do whichever you prefer.
Lighter weeks are common practice with thin evidence. Our plans make them optional: about half the sets at easy weights every 6 to 8 weeks, or sooner if you're run down. In the one trial, a week off slightly reduced strength gains, so lighten rather than stop.
True overtraining is rare in strength training. The signs that matter are performance that keeps falling despite rest, persistent tiredness, low mood, poor sleep and frequent illness.
The NHS says adults need 7 to 9 hours. Sleeping 6 hours or less cut next-day performance by about 8% on average, and one sleepless night cut muscle protein building by 18%.
After a heavy session, muscle protein building roughly doubles at 24 hours and is close to normal by 36 hours (6 men, arm training).
Source 15
In 10 trained men, jump height and bar speed recovered faster when sets stopped well short of failure; taking every set to failure delayed recovery by up to 24 to 48 hours.
Source 16
After an unaccustomed session, soreness takes up to about a week to fade; after familiar sessions there is usually little. Our muscle soreness guide covers it.
Source 17
Adults should do muscle-strengthening activity on at least 2 days a week, and the NHS suggests spreading exercise over 4 to 5 days a week, or every day. The American College of Sports Medicine advises training each major muscle group 2 or 3 days a week, with at least 48 hours between strength sessions. There is little direct trial evidence behind the 48 hours.
In 27 trained men, 6 weeks of training 3 or 6 times a week, with the same weekly sets, gave similar gains in strength and muscle. An overview of 137 reviews found that how often you train, from once to more than 5 times a week, didn't change muscle growth when weekly volume was matched; 2 or more sessions a week helped strength.
No study has tested how many full rest days a week is best. The European and American consensus on overtraining says athletes are generally advised to take at least one full rest day a week, because going without one during hard training is closely linked to signs of overreaching. Our editorial default, which all our plans follow: at least one rest or easy day a week, and a day between hard sessions for the same muscles. Moving every day is fine if most days are easy.
Taking sets to failure slowed recovery by up to 24 to 48 hours. If you train to failure or very hard, leave more time before you train the same muscles again.
Source 16
The consensus advises cutting the day's training, or taking a full rest day, when your performance drops or you feel excessively tired.
Source 4
We found no good evidence that older adults need extra rest days. Across 36 studies, older adults showed no more muscle damage after exercise than younger adults, and reported less soreness. Staying consistent matters more: in one trial, older adults lost their muscle gains when they cut their training right back, while younger adults kept theirs.
Light activity is about 2 to 4 out of 10 effort, such as slow walking. Replacing sitting with activity of any intensity, light included, is good for your health. Moderate effort (you can talk but not sing) is better counted as a training day (our suggestion).
In 16 trials of elite endurance athletes, no recovery method outperformed simple rest for performance or soreness. Light activity eased muscle soreness for a short time in pooled studies, but most cool-down studies found no real effect.
Our editorial starting point: 20 to 40 minutes of walking, easy cycling, swimming, gentle yoga or mobility at 2 to 4 out of 10, or the 25-minute active recovery workout below. A full rest day is just as good for recovery, so choose what you enjoy.
Source 5
Experts define a deload as a period of reduced training stress to ease physical and mental fatigue, help recovery and leave you ready for the next block. In a three-round consensus of expert strength and physique coaches, it could mean fewer sets, reps or training days, planned in advance or taken when you feel physically or mentally fatigued, keeping the main lifts that work several joints. Whether deloads are necessary is unclear.
Source 9
In a survey of 246 competitive strength and physique athletes, deloads lasted about 6 days, every 5 to 6 weeks. They cut sets, reps and weights, stopped further from failure, and kept the same days and exercises, and they took them when performance stalled or soreness and joint aches built up.
Source 7
In a trial, 39 trained young adults did 9 weeks of very hard training (about 90 sets a week, every set to failure), with or without a full week off in the middle. Muscle growth was similar, but strength gains were slightly smaller after the week off, and people said they felt lethargic when they came back. The study was funded by a training company, and it may not apply to typical recreational training.
Source 8
Not compulsory, especially for beginners. Take one every 6 to 8 weeks, or sooner if your performance drops for two sessions in a row and you feel run down or achy: same days, same exercises, about half the sets, and weights that feel easy (4 or more reps in reserve, meaning you could have done at least 4 more). Then restart at your previous weights. A lighter week looks better than a week off if strength matters, and whether recreational lifters benefit hasn't been tested.
The push/pull/legs plan, which has the most weekly sets, plans its lighter week in week 7, and the 7-day plan every fourth week; the other plans make it optional in week 8. Coaches agree that deload timing depends on how you respond to training and what else you do, and an overview of reviews found that planned variation in training (periodisation) made no consistent difference to results.
Gains are largely kept through breaks of up to about 3 weeks. In a trial of 14 men, three cycles of 6 weeks' bench press training and 3 weeks off gave the same muscle and strength gains over 24 weeks as training straight through.
After 16 weeks of training, 70 adults stopped or cut back for 32 weeks. One session a week kept their strength, and younger adults kept their muscle size on a third or even a ninth of their previous training, but older adults lost the muscle they had gained. Strength was largely kept even by those who stopped.
A short block of hard training can dip your performance for days and lead to improvement once you recover; this is called functional overreaching, and recovery often takes up to about 2 weeks. If hard training carries on without enough recovery, performance can stall for weeks to months. Overtraining syndrome is a fall in performance with mood changes that lasts despite weeks or months of rest. Lighter training may be enough to recover from overreaching; overtraining syndrome needs rest.
Source 4
Performance in your sport or training that keeps falling despite rest, tiredness, low mood with less energy and drive, poor sleep, and frequent illness such as colds. No single test confirms it: the diagnosis means ruling out other causes, such as anaemia, a thyroid problem or an infection.
Source 4
A scoping review of 47 studies found minimal evidence of true overtraining syndrome in strength training, though keeping up very high volume or intensity can lead to overreaching that takes weeks to recover from. Across 22 studies, only a sustained fall in performance was a reliable sign of overtraining.
Across 38 studies, resting hormone levels were mostly normal in overtrained athletes.
Training hard on too little food harms health and performance in women and men; experts call this relative energy deficiency in sport (REDs). If you're worried about your energy, your periods or repeated injuries, see a doctor.
Source 26
From the European and American consensus:
Source 4
Across 69 studies (959 people, 89% of them men), sleeping 6 hours or less cut next-day performance by 7.6% on average, across strength, sprint, endurance and skill tests. The effect was consistent after a night without sleep or waking early, showed up in afternoon and evening sessions more than morning ones, and grew by about 0.4% for every extra hour awake.
Source 13
In 13 young adults, one night without sleep cut muscle protein building by 18%, raised the stress hormone cortisol by 21% and lowered testosterone by 24%.
Source 14
The NHS says adults need 7 to 9 hours on average, and that everyone needs different amounts. Many athletes sleep less than 7 hours, and sleep experts advise matching sleep to your own needs rather than one number. In the wider population, regularly sleeping under 7 hours makes colds and other respiratory infections more likely.
Across 23 studies, evening exercise didn't harm sleep in healthy people; only vigorous exercise ending within about an hour of bedtime might. If you have insomnia, the NHS advises not exercising in the 4 hours before bed.
In 11 college basketball players, 5 to 7 weeks of aiming for 10 hours in bed added nearly 2 hours of sleep a night and improved sprint times and shooting accuracy. There was no comparison group.
Source 29
Sleep loss can upset the nervous system's balance in ways that mimic overtraining, and it impairs sport-specific performance.
Source 30
Keep regular wake-up times, relax for an hour before bed, and keep your bedroom dark and quiet (NHS). If a short night is unavoidable, a morning session holds up better than an evening one, and waking unusually early hurts more than going to bed a little late (our reading of the evidence).
Do 20 to 40 minutes at 2 to 4 out of 10 effort, where you can chat the whole time (our suggestion).
Do one slow round of 8 cat-cows, 8 to 10 switches, 3 world's greatest stretches and 6 rotations each side, 5 breaths in downward dog and a minute in child's pose (doses from our routines).
3D demoCat-cowBeginner · No equipment
3D demo90/90 switchIntermediate · No equipment
3D demoWorld's Greatest StretchIntermediate · No equipment
3D demoThoracic rotationBeginner · No equipment
3D demoDownward-facing dog (Adho Mukha Svanasana)Beginner · No equipment
3D demoChild's Pose (Balasana)Beginner · No equipmentSpend a few minutes before bed on slow breathing with no holds, 4 rounds of 4-7-8 breathing if holds feel fine, and 2 minutes with your legs up the wall.
The active recovery workout is the easy option for rest days; keep the easy cardio workout genuinely easy on recovery days, and use the breathing and bedtime routines to wind down.
A 25-minute easy session for rest days and sore muscles: easy cardio, a gentle mobility flow, optional rolling for sore spots, and slow breathing to finish.
25 minBeginner11 movesCardio machine, A wallA steady 30 to 45 minute cardio session at talk-but-not-sing pace: walk, cycle, row or cross-train, counting toward weekly activity guidelines.
40 minBeginner3 movesCardio machine, A wallA 15-minute hip opener: 90/90 switches, windshield wipers, CARs, Cossack squats, frog and pigeon.
15 minIntermediate8 movesA wallA 20-minute beginner yoga sequence: mountain, chair, warrior II, triangle, tree, down dog, cobra and child's pose.
20 minBeginner9 movesA stepA 10-minute foam roller routine for calves, thighs, glutes and upper back: about a minute per area, moderate pressure, slow rolls.
10 minBeginner6 movesA foam rollerA 6-minute breathing routine: slow breathing, crocodile breathing, alternate nostril breathing, box breathing and 4-7-8 breathing.
6 minBeginner5 movesNo equipmentA slow, 10-minute floor routine to unwind before sleep: child's pose, twists, happy baby and slow breathing.
10 minBeginner7 movesA wallEvery plan keeps at least one rest or easy day a week; the 7-day plan shows how to move every day with mostly easy days, and the push/pull/legs plan schedules its lighter week in week 7.
A full week that mixes intensities: three strength days, two cardio days, a mobility day and an easy day, never seven hard days.
3 training days45 minBeginner6 days a weekA 6-day push/pull/legs plan for experienced lifters: two push, two pull and two leg days, with sets, reps, rest and lighter weeks.
6 training days55 minAdvanced3 days a weekA beginner gym plan: three full-body sessions a week, alternating workouts A and B, with sets, reps, rest and an 8-week progression.
3 training days45 minBeginner3 days a weekA 3-day strength plan for men over 40 with power and bone work, two cardio days and mobility, built on research on ageing muscle.
3 training days45 minBeginnerStop exercising and call 999 (911 in the US) if:
Source 31
If you're worried about your energy, your periods or repeated injuries, see a doctor.
Source 26
Reduce or stop training when you have an infection, and allow time to recover. Avoid hard exercise if you have vomiting or diarrhoea, then ease back in with lighter sessions.
With weekly sets matched, training 3 or 6 days a week gave similar results, so training on consecutive days is fine. The American College of Sports Medicine advises at least 48 hours between strength sessions; our plans give each muscle a day or more between hard sessions, often by working different muscles on consecutive days.
Deloads are a reasonable tool with thin direct evidence. The only trial found a week off slightly reduced strength gains, and coaches take them when lifters are fatigued as well as planning them in advance.
True overtraining syndrome has rarely been documented in strength training. Feeling run down is more often linked to too little sleep, too little food or life stress, which all add to training stress.
Gains are largely kept through short breaks, and one session a week maintained strength for months.
We found no good evidence for this. Across 36 studies, older adults showed no more muscle damage after exercise than younger adults.
Source 19
Resting hormone levels are mostly normal in overtraining, and no single marker is reliable.
In healthy people, evening exercise didn't harm sleep, except vigorous exercise ending within about an hour of bedtime. If you have insomnia, the NHS advises not exercising in the 4 hours before bed.
No trial has pinned down a number. The American College of Sports Medicine advises at least 48 hours between strength sessions, and experts on overtraining advise at least one full rest day a week. Our plans keep a day between hard sessions for the same muscles and at least one rest or easy day a week.
Moving every day is fine, as long as most days are easy. Lifting hard every day isn't needed: when weekly sets are matched, training 3 or 6 days a week builds similar strength and muscle.
After a typical hard session, strength and power take a day or two to come back; in one study, taking sets to failure slowed recovery by up to 24 to 48 hours compared with stopping well short. Muscle-building activity stays raised for about a day and a half. Soreness after a new or unusually hard session can take up to a week to fade.
Either rest completely or do something light, such as a walk, an easy bike ride, gentle yoga or a mobility routine, at an effort of about 2 to 4 out of 10. Light activity is good for your health, but it isn't proven to speed recovery, so choose what you enjoy. Our active recovery workout takes 25 minutes.
A deload is a planned lighter week: the same days and exercises, about half the sets, and weights that feel easy. It's common practice among competitive lifters, roughly every 5 to 6 weeks, but direct evidence is thin and it isn't compulsory, especially for beginners. If you use one, take it every 6 to 8 weeks, or sooner if your performance drops for two sessions in a row and you feel run down.
No. In the one trial, a full week off in the middle of a programme didn't change muscle growth but slightly reduced strength gains, so a lighter week looks the better choice if strength matters. A week off for holidays or illness is fine, though: you won't lose much.
Very little, if any. Gains are largely kept through a few weeks off, and in one trial people who took 3 weeks off every 6 weeks gained as much over 6 months as those who trained continuously. If you're short of time, one session a week keeps your strength for months.
Performance that keeps falling despite rest, tiredness that doesn't lift, low mood or loss of motivation, poor sleep, and frequent colds are the signs experts list. Short dips after a hard block are normal and recover within days to about two weeks. If you feel like this for several weeks, see a GP, because other conditions such as anaemia or a thyroid problem can cause the same symptoms.
Overreaching is a short-term drop in performance after hard training that recovers with a few easier days, and often leads to improvement. Overtraining syndrome is a long-lasting fall in performance with mood changes that persists despite weeks of rest; it is rare in strength training and is diagnosed by ruling out other causes.
The NHS says adults need 7 to 9 hours. Sleeping 6 hours or less cut next-day performance by about 8% on average in studies, and one night without sleep reduced muscle-building activity by 18%. Regular wake-up times help; if you have insomnia, the NHS advises not exercising in the 4 hours before bed.
We found no good evidence that you do. Older adults don't get more muscle damage from exercise than younger adults, and they report less soreness. Staying consistent matters more: in one trial, older adults lost their muscle gains when they cut their training right back, while younger adults kept theirs.
Experts advise reducing or stopping training when you have an infection, and allowing time to recover afterwards. Avoid hard exercise if you have vomiting or diarrhoea. Ease back in with lighter sessions.
Exercise education, not a personal prescription, and clinical review of these guides is pending. Check with a GP before starting hard training if you have a heart condition, chest pain, dizziness or breathlessness when active, and stop for sharp or increasing pain. Health disclaimer.
