The visual age (appearance) of a person (aging)?

I am sorry, i meant mars and mecury make a person YOUNG looking, haha. 

I watched a YouTube video about aging.

The researchers said several times that slightly lower-than-normal blood sugar should help them age more slowly.

Could there be any connection to the natal chart when it comes to looking younger than expected?

What could be the ruler of insulin and blood sugar level in the astrological sense? 

Link for this video. https://www.youtube.com/watch?v=n9IxomBusuw&t=2675s  

Jupiter is the sugar and the insulin is under the control of Saturn.