Hi guys,
pimples occur due to many reasons:
In PUBERTY: yes, due to hormonal changes in our body. in ages 16-18 we are most likely to get pimples.
Due to OILY skin: here is scientific part- sometimes dead skin cells do not shed and excessive sebum(oily substance produced in our glands) is filled in pores then it becomes thriving place for bacteria as they feed on both oil and dead cells which causes blockage resulting in pimples.
How to avoid:
eat less oily food.
eat less sugarated food and drinks.
drink lots and lots of water.
wash face 2-3 times to flush excess oil.
change pillow covers or wash them frequently.
eat healthy foods and fruits