Hey Alex,
sorry for answering so late. I was afk the last days.
Yes, I mentioned this already in previous articles. The telomerase activity depends on the cell type. Stem cells, sperm cells and some cells of the immune system display a remaining telomerase activity the entire life.
Actually, you can promote this by diet, even though it is not completely understood thus far. I cited articles where they tried to figure out which molecular mechanisms are involved. Check this article here.
In the end, fasting is a good idea in any case!
Happy new year
Chapper