Thinning hair and falling hair may be a regular part of getting older or can be because of different reasons. Age also makes hair end up finer.
A person may be aware of his or her own hair loss or thinning when they look in the mirror and see a widened parting or receding hairline, or if they see more hairs on a comb or brush or changes in how a style such as a ponytail looks.
It is usual to lose around one hundred hairs a day, but those hairs will grow again.