Linked with neck pain in adults, but not shown to cause itEmerging evidence
A meta-analysis of 15 studies found adults with neck pain had heads about 5 degrees further forward on average than adults without, and more forward heads went with more pain and disability. Every study measured people once, so none can show which came first, and there was no difference in teenagers.
A second review, of 26 studies, found a difference of about 3 degrees, and a 2026 study of 92 adults found no link between the angle and chronic neck pain.
Sources 1, 23, 21
Other things predict neck pain betterMixed evidence
In 396 adults followed for a year, bending the neck to text didn't predict neck pain, while poor sleep and too little physical activity did. In 150 young adults, texting posture wasn't linked to neck pain. In office workers followed over time, the risk factors were low job satisfaction, a keyboard close to the body, little variety in tasks and feeling muscle tension, not posture.
The Chartered Society of Physiotherapy says posture plays a much smaller role in neck problems than once thought, and a physiotherapy journal viewpoint says the belief that pain comes from sitting "incorrectly" lacks strong evidence.
Sources 4, 24, 25, 5, 26
Headaches: more forward heads, cause unknownEmerging evidence
In 12 studies of 1,083 people, those with chronic headaches had more forward head posture than people without headaches and than people with occasional headaches. These studies measured people once, so they show an association, not that posture causes headaches.
Source 27
Breathing and balance: small, conflicting studiesMixed evidence
Three small studies found slightly lower lung volumes with a forward head, but a 2026 study of 67 adults found no difference in lung function. In 19 studies, a forward head went with some differences in balance tests and in sensing where the neck is, but deliberately pushing the head forward didn't reduce balance. There's no good evidence that a forward head causes breathing or balance problems.
Sources 28, 29, 30, 31, 32
Exercise moves the head back by about 3 degreesEmerging evidence
In 10 randomised trials of 550 people with neck pain, exercise programmes improved the craniovertebral angle by 3.4 degrees on average compared with control groups (moderate certainty), above the 1.4-degree change the authors counted as meaningful. Pain fell by about 1.4 points on a 10-point scale (low certainty).
Programmes of 8 weeks or more, and those combining neck and upper-back exercise, did better in exploratory analyses. In another review of 13 trials, only the combined programmes reduced pain, and an earlier review of 7 trials found large changes in the angle.
Sources 6, 33, 10
Strengthening changes posture; stretching doesn'tEmerging evidence
A review of 23 controlled trials, with 969 mostly healthy people, found stretching programmes didn't change posture, while strengthening programmes had a large effect, strongest in the neck and upper back and absent in the lower back. Strengthening beat stretching when the two were compared directly. Certainty was moderate.
Source 8
Lying chin tucks improve how you hold your headEmerging evidence
In 58 people with chronic neck pain, the head drifted forward 4.4 degrees during a 10-minute computer task, against 2.2 degrees in people without pain. After 6 weeks of training with the lying chin tuck (craniocervical flexion training), the drift was smaller; neck strength training with heavier loads didn't change it.
A review of 12 trials found this training improves co-ordination of the deep neck muscles, and it improved head posture in the two studies that measured posture. In 30 dentists with neck pain it beat neck isometrics over 4 weeks, but in 30 teenagers who use computers, adding 4 weeks of it to posture education didn't change their posture any more.
Sources 7, 9, 34, 35
Posture changes more reliably than painEmerging evidence
In 28 small trials of corrective exercise for "upper crossed syndrome" (a forward head, rounded shoulders and a rounded upper back together), head posture improved a lot, but pain, function and strength didn't improve consistently, and most trials didn't check what happened afterwards. A second review reached similar conclusions about posture.
Sources 11, 36