DEAR DR. ROACH: Is there any reason to start taking vitamin D at age 90? I’m in good health except for osteopenia and high blood pressure. How long does it take to have an effect? — P.S.

The first signs of spring are everywhere. Maybe you are noting them on your family calendar with your kids. Crocuses and daffodils poking up through dry leaves and songs of returning birds. Even in places where there aren’t mittens and woolen hats to put away, the first, fresh spring breezes and longer days of sunshine trigger an upsurge in spirit.

The forerunner of COVID-19 appears to be the spirit of fear and panic.