My age is 27 and i am with crypto for 3 years since i start and regularly i work with mobile or pc like 12-14 hours. But in this 3 years i took my glasses in first year just a little bit of power glass.  But after that in this two years also added more power in my eye glasses. Now i am worried about how much time can i stay with crypto. And in this digital working system where i can earn for long term i think i should focus on other business.Also this advice is for everyone who wants to stay with crypto and do not wants to lose his health!! All should care about his health first.