Even in your mid and late teens you can experience changes in the density and texture of your hair.
Here are some things to consider if any of this applies to you.
There are 3 categories of thinning hair.
1. Mechanical damage is when you use extremely HOT tools including Hair-Dryers, curling/ flat irons daily. Poorly maintained combs ,hair brushes and tools used by your stylist that are not properly managed.
All the above will create weaker hair and possibly breakage if not kept in check this can result in spot thinning and or loss of density. This can be reversed (see below).
2. Chemical damage this includes bleaching, coloring , perming ,relaxing and straightening, this can be reversed (see below)
3 Systemic which includes both Hereditary and Reactionary. Hereditary can be attributed to your genetics. Reactionary can be attributed to Diet, Environmental, Stress, Hormonal conditions, or medications.
A guide for Choosing the right shampoo for thinning hair.
These can be managed with professional guidance from a dietitian, homeopath, nutritionist or doctor.
Lets look at how to manage MECHANICAL DAMAGE that causes thinning, this can be reversed rather quickly by finding the correct shampoo, re constructor treatments which can show results within 3 treatments. If you like using hair ties, barrettes be sure they are not broken and or too tightly applied as they can result in breakage.
CHEMICAL DAMAGE ,yes we all like to dabble in chemical services, but you must talk to your stylist if you are experiencing any changes in your hair. Don't forget to let your stylist know if you have recently started taking medication even allergy medication as it can effect the outcome of a chemical service. It may not happen immediately may take 2 or 3 services to see the changes in your hair.
Gently brushing your hair and scalp daily can be the simplest and most effective approach to address thinning hair. It seems most of us think the reverse, if the hair is fragile we don't brush but it does help with blood flow (micro circulation) to the root of the hair which stimulates hair growth and density, what ever breaks off will soon be replace with new healthier hair..
In most cases thinning can be reversed or managed but don't just sit back and let it happen ,be proactive and address it as soon as you see any changes.