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Dear Dr. Roach: My wife, who is 66, has been leaving cupboard doors and some dresser drawers open for the past year or so. Is this a sign of anything to be concerned about? Anon.

Dear Dr. Roach: I was diagnosed with Gilbert syndrome after I had a blockage of my common bile duct and became jaundiced. This was three months after I had my gallbladder removed (via an open surgery).

It鈥檚 been said that 鈥渢hose who do not remember history are destined to relive it.鈥� Today, the problem is that none of us seems to remember history.

Dear Dr. Roach: An almost 90-year-old friend has osteoporosis. In January, she collapsed while walking home. Now, five months after having a compression fracture of her vertebra, she says she is most comfortable while lying in bed.

Dear Dr. Roach: My running friends and I are in our mid-70s (with a couple of 80-plus guys), and we continue to run, albeit at a much-reduced pace. All of us have been running for about 40 years and used to be pretty good marathoners/10K racers.

Dear Dr. Roach: I am an 85-year-old woman. I had a stent placed in my heart artery in 2008, and I have been well since then. I have been on statins for many years. My present dose is 20 mg of Crestor daily.

Dear Dr. Roach: My husband and I are taking a cruise around South America that includes several stops in Brazil. We both are 72 and in good health.

Could hydrogen sulfide (H2S), the gas that causes the odour of farts, ever be the reason behind a Nobel Prize in Medicine? Dr.

Dear Dr. Roach: I have read online and in our local newspaper that doctors are no longer recommending metformin as a treatment for Type 2 diabetes. Can you please explain why metformin is no longer being prescribed? P.K.

Dear Dr. Roach: I am a white male, 70 years old, over six feet tall and weigh 140 pounds. I am healthy except for lymphocytic colitis, which is under control with Imodium.