Fingernails

Have you ever noticed that the nails on one hand always seem to grow faster than the other? You are not imagining it. Your dominant hand; the one you write with, the one you use the most grows nails noticeably faster than your non-dominant hand. And the reason why is a beautiful example of how intelligent your body really is.

Your body constantly monitors which parts of you are being used the most. The more you use a hand, the more blood circulation that hand receives. More blood means more nutrients being delivered to the nail bed, and more nutrients means faster growth. Your body is essentially rewarding the hand that works harder.

On average, fingernails grow about 3.5 millimetres per month. But that rate is not the same across all fingers either. Your middle finger tends to grow the fastest, while your thumb and little finger grow the slowest. Scientists believe this is also linked to the length of the finger bone - longer bones appear to drive faster nail growth.

Temperature also plays a role. Nails grow faster in summer than in winter, because warmer temperatures increase blood circulation throughout the body. They also grow faster during the day than at night, and faster on your writing hand than your other hand.

Your body is paying attention to everything. Every movement, every habit, every season. It adapts quietly, without ever asking for your input.

Verify here:

https://www.healthline.com/health/beauty-skin-care/how-fast-do-nails-grow

https://www.aad.org/public/everyday-care/nail-care/nail-care-secrets