We're born with all our hair follicles already in place. While some may change in size over time, we don't develop any new ones after birth. As adults, we have about 100,000 individual strands of hair. It's completely normal to lose some - 50 to 100 strands - every day. Statistics show that almost 40% of all men will show some degree of hair loss by the age 35. That figure climbs to 65% among men 65 and over.
To make sense of how hereditary hair loss happens, it's important to understand how hair grows in the first place and what makes Male Pattern Baldness occur. It's also important to determine other causes of hair loss.