The sun and heat can indeed enhance hair growth, with human hair growing faster during the summer by about 10% compared to colder weather. In warmer weather, the body doesn’t have to exert as much energy to keep the internal organs warm. Unlike in winter, when cold hands and feet occur due to blood pooling around the torso to protect essential organs, summer allows for more efficient blood flow throughout the body. This improved circulation means more blood reaches the scalp, delivering additional nutrients that stimulate slightly faster hair growth. So, as the temperature rises, so too does your hair’s potential for growth.
