Health (S)care

I have a simple request regarding the concept of federal mandates or provision of health- care and/or health insurance. Would someone kindly cite the empowering language in the U.S. Constitution (as amended) which gives the Federal Government authority and power to provide or mandate healthcare and/or health insurance and furthermore to use any federal tax money for such activity. I have read through the Constitution and amendments and can find no such positive authority, short of a new amendment. Finding none, it seems that the Tenth Amendment is the controlling legal authority in this instance and only the States would have such power. Any light that shed on this murky conundrum would be greatly appreciated. And by the way, don’t throw up the infamous Interstate Commerce Clause. Sorry, no cigar. It would seem that this question applies equally to Medicare and Social Security as well.