exposure to the sun induces the production of vitamin D. Which is implicated as statistically helpful in reducing heart attack, according to a researcher. He expounded on TED.com. As a Doctor he collected stats in Scotland, and took a post doc post in Australia and found OZ had better stats. His research took him to UV-B as the active constituent of sunlight. He reckoned taking vitamin D tablets were not much effective in the context, and UV-A similarly. So choose yer sunbed carefully. Wiki on UV-B lamps

As to the video of Twitler riffing on injection, digestion disinfectant - I heard those. And did I hear bleach ? Well maybe the suggestion had been planted already so, as anyone would, did I conflate it with disinfectant? There is no doubt in my mind he was implying the use of an existing readily available product. & definitely no doubt in the mind of one of his aides looking at the ground in a highly hidden yet still discernible, don't blame me embarrassed way. The problemo with checking for bleach is that Deep Fakes are with us and Twitler's head was turned, at times, to his two aides as he spoke. Business Insider's transcript which leaves out the words medical vouchers see Youtube, which looks genuine

Deep Fakes are the "liars bonus". He says "Fake News" so often, you don't know who is producing the fakes. But the backtrack of sarcasm defines that he said something his aides regret.