Sunlight and Hair Growth

• There are many reports that exposing the scalp to sunlight, rain, wind and other elements will stimulate hair growth. These natural weather conditions can allegedly stimulate hair growth on the surface level. While there are no scientific studies that support this theory, several hair-growth specialists praise the nurturing affects of the elements on the scalp.
  
  In addition, sunlight reputedly can offer many of the same benefits as the modern laser treatments that can stimulate hair growth. It emits several of the same wavelengths as phototherapy and lasers that are used at hair clinics.
  
  The only real scientific evidence that links sunlight to hair growth is regarding the production of vitamin D. Sunlight naturally causes the body to produce vitamin D, which has several ties to hair-loss prevention and hair regrowth. Studies on lab mice showed a direct correlation to hair loss and vitamin D deficiencies.
  
  Unfortunately, the supplements seem to only counter the problem when there was a preexisting deficiency in the vitamin. Furthermore, there are several ways to raise vitamin D production within the body that do not involve sunlight. Eating more fatty acids or taking a vitamin D supplement are two examples.
  
  

Other Considerations

• Be aware that sunlight might even contribute to further hair loss. The epithelial cells that grow hair from the scalp are highly sensitive to ultraviolet light. Excessive exposure to sunlight can run the risk of depleting the cells of vitamins C and E, thus inhibiting its growth potential.
  
  A vitamin D deficiency is always a possible factor in hair loss, in which case increased sunlight exposure might be a possible solution. Otherwise, there are no scientific studies showing any correlations between the two. Most likely, the problem is genetic or brought about by some other factor that sunlight will not impact. Speak with a physician to determine what type of hair therapy might be best for you before you make a decision.