People make less stem cells as they age which is normal and leads to loss of hair. However, if you lose hair in a short period of time perhaps less than a year then their’s slightly a deeper problem.
1) High stress
It leads to high levels of cortisol the stress hormone which distracts the normal hair growth cycle pushing the follicles into the resting phase where they eventually shed and fall away
2) Hormonal imbalance
(androgenetic alopecia) most common cause of hair growth in both men and women is having too much androgen hormones [DHT]. it causes men to have a receding hairline or baldness at the back of the head. In women hair tends to thin out all over the head
3) Zinc deficiency
zinc helps to block 5-alpha reductase enzyme from converting testosterone into DHT. lack of sufficient zinc diet in human body leads to loss of hair
4) Poor blood flow
it leads to lack of enough oxygen and nutrients reaching your skull mostly effects people who are overweight and have diabetes and insulin resistance
5) Digestive problems
Inability of the body to absorb adequate nutrients required for hair growth.
6) Micro imbalance
7) leaky gut
it leads to loss of hair in different patches on your head
8) Thyroid problems
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__One should seek medical assistance from a trusted and skilled specialist if affected by hair loss directly or indirectly.