My brother is well-built, and recently gave up smoking. He eats well. But he needs all sorts of tonics like vitamin-supplements, and breathing-medicines. He has gone in for complete, prophylactic health-check-ups ; as many as three of them, in just eleven months. The doctors haven't found anything major, but he takes plenty of pills. Can you please advise me on what is wrong with him, and what he needs to do ? Thanks.