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Danielle Braff Chicago Tribune A day at the beach doesn’t have to be totally lazy — beaches provide a great fitness opportunity: The sand and water provide fantastic natural resistance for a cardio and strength workout.

Dear Dr. Roach: My question concerns my husband. We have argued several times about his drinking habits, so I have decided to enlist your help in determining if I am making a mountain out of a molehill or not.

Dear Dr. Roach: I have a family member who thinks infants and older kids, like my six-year-old son, don’t have bones but only cartilage. Can you explain about bones and cartilage, as well as anything else that has to do with bones growing? M.P.

Dear Dr. Roach: I have taken Armour Thyroid for 57 years. My T4 and TFTI levels are normal, but my TSH level is low. Why is this? M.P. Armour Thyroid is a mixture of two hormones: T4 (thyroxine) and T3 (triiodothyronine).

Dear Dr. Roach: Does the water in coffee and tea count as some of the water a person is supposed to drink daily? People are often told to drink eight cups daily. C.L.

Dear Dr. Roach: My mom is 77 years old. Three years ago, she developed a blood clot in her leg and needed surgery. This year, she developed an ulcer in that leg.

Dear Dr. Roach: I had my ears pierced when I was about 10, developed pea-size keloids, which I had removed from behind both lobes, and discontinued wearing earrings. I’m 60 now, and have been thinking about trying ear-piercing again.

There’s nothing good about terminal cancer pain other than the pain finally ending with death. But there’s another type of chronic pain, arthritis, that goes on and on year after year. It can be a living hell.

Dear Dr. Roach: I wonder how we should view the expiration date on sunscreen. I would appreciate your medical view on this. Are they just put there to make us purchase more? H.L.C. All products lose effectiveness over time.

Dear Dr. Roach: Some time ago, you wrote an article on trigger finger. I have two on my left hand and one on my right. I’m 94 and still work an eight-hour day, four days per week. But my job includes hanging clothes, folding, etc.