My grandfather is 95 years old and few days before he started to yell loudly. When we took him to hospital, the doc said that his BP and Sugar level increased. But now he is not talking to anyone and not even able to indicate his needs like food, water, Going for Pee/poop. He is trying to tell but not clearly and not even talking to anyone. Few extra information about him - One and a half year back, he lost his wife (My grandmother) and then by falling down from bed, broke his left leg bone. I don't know what is it. Is it just his age which is taking his life to an end or he got brain problem something. Please help.