I am more concerned for his 2nd term though. He will be 86 in January 2029, the end of his second term - if he makes it that far.
Life expectancy at 82 for men is 7.32 years. Most 82 year olds make it to 86; Wealthy 82 year olds with access to the highest level of healthcare, with a personal medical team on permanent standby, and with a twenty-four hour close personal protection team who plan all travel and defend against any external risks, are very unlikely to die before making it that far.
It's not like Mr Biden is going to have a fall in his kitchen, and not be found until his neighbours complain about the smell.
He doesn't have most of the risks of death that cause that 7.32 years figure to be as low as it is, for the average 82 year old American man.