Learning second language to delay the onset of Alzheimer's disease

What do you think, is't true that 'Learning second language helps to delay the onset of Alzheimer disease" ? If so, are you interested in learning any language, I can help you to study Indian language Hindi / Marathi and / or give English conversation practice to beginners.
You are welcome.

I believe if you keep your mind busy learning new things it keeps it from slowing down. So maybe one day it will be proven it helps!