Encyclopedia
Reference entry
Lifestyle
Sleep
The period in which most physiological repair occurs; relevant to hair health.
Soumm · Lifestyle
Definition
Sustained, sufficient sleep supports hormonal regulation and tissue repair, both of which affect the hair growth cycle indirectly.
Chronic under-sleeping is a common and frequently overlooked contributor to hair concerns.
Why Soumm includes it
No topical care compensates for persistent sleep deprivation. Rest is part of care rather than a break from it.
See also: Stress, Cortisol.
A note on evidence
Hair responds to many things at once: sleep, nutrition, hormonal changes, scalp condition and stress among them. Published here for education only; individual concerns should be discussed with a qualified healthcare professional.