According to Dr. David Sinclair, your fingernails can reveal information about the state of your health. He has discussed nail growth as one possible way of observing changes associated with biological aging. But what does nail growth actually tell us, and what should you do if you notice a change? Let’s explore the connection below.

 

Your Fingernails and Biological Aging

Dr. Sinclair has described regularly examining his fingernails as one way of observing how quickly his nails grow and whether that growth appears to change over time.

For most people, fingernails are not the first part of the body they think about when considering their overall health. We tend to pay more attention to areas such as diet, the lungs, the heart, and general well-being.

 

However, nail growth reflects the activity of the tissues responsible for producing the nail. Changes in growth can occur as people age, although nail growth by itself cannot determine an individual’s health or life expectancy.

Signs of Biological Aging

Your chronological age and biological age are not necessarily identical. Biological aging refers broadly to changes in how tissues and cells function over time.

 

One observable change is the rate at which fingernails grow. Dr. Sinclair