Nail Growth Reveals Longevity: Harvard Geneticist's Surprising Insights

• A recent study suggests that nail growth rate can indicate human longevity and biological age.
• Dr. David Sinclair, a Harvard geneticist, states that fast-growing nails after age 30 signify healthy, slow-aging vital organs.
• Research from 1979 found that nail growth slows by 0.5% per week after age 30, making continued fast growth a positive sign.
• Slower blood circulation, nutritional deficiencies, and hormonal changes also impact nail growth.
• Nails can also signal various diseases or deficiencies like zinc, iron, calcium, or vitamin A, urging observation.

Why It Matters: Fast nail growth, especially after 30, may indicate healthy, slow-aging vital organs and potential longevity.