Your hair might thin and turn gray because of the same underlying energy system in your cells — when this system doesn't work well, it can cause both problems at once.

When the energy factories inside hair follicles don't work right, they make too many harmful molecules that damage the color-producing cells, making hair turn gray faster.

Stress might be turning your hair gray by messing with your cells, and relaxing could help your hair get its color back.

Going gray isn’t just about getting older — it’s because of damage from stress inside the hair roots, where too much hydrogen peroxide builds up and the body can’t fight it off anymore.

Scientists think that when there’s too much damage from natural body chemicals (oxidative stress) and not enough protection from helpful antioxidants, it might cause hair to turn gray earlier than normal.

As we age, our hair might turn gray because of a buildup of a natural chemical called hydrogen peroxide in the hair, and our body's ability to clean it up weakens — this messes with the pigment-making process in hair.