Chubby in childhood and skinny in senility , Why so ?

Look at your childhood pics where you were seen as a chubby baby with lots of happiness and enthusiasm on face always , and pictures of old people with frowned eyebrows and  wrinkled skin ...
How people get transformed like this ?
As per Ayurveda , the Vata ,Pitta and Kapha affects the body in three stages of life also.
In the childhood , Kapha nourishes and develops the bodily tissues with its unctous nature , also the babies will be having soft , smooth skin and  attraction to sweet things due to kapha ,happiness also correlates to Kapha. Satva guna dominates in mind also . They are innocent in nature then.
Later , Pitta with hot nature makes the body attain full maturity ,makes brave ,valour Rajasic materialistic people in the middle age .
In the senility , the body undergoes influence of Vata , bodily tissues deplete ,body becomes discoloured , greying and other ageing mechanisms occur. See antioxidant activity get reduced , so Oxygen the gas is having role there.. Gas is also a type of Vata. Blackish discolouration and pain is seen more in senile people due to Vata .
Tamasika qualities like ignorance is seen , say in people with senile dementia.
If one follows Ayurvedic regimen always , a healthy mind and body can be assured of .