Elizabeth Ko

Q: I was very interested to read your column that talked about the fat around your organs, and how when you have too much, it is bad for your health. I have also heard of something called brown fat, and that it's actually a good thing. Can you please explain?

Dear Doctors: I am a 47-year-old woman in good health. I exercise regularly and eat a healthy diet. At my physical, I was surprised when my doctor said I have A-fib.

Dear Doctors: My company provides perks for involvement in its wellness program, and I've decided to start biking the 4 miles (with a few hills!) to work. Do you think

DEAR DOCTORS: I had my physical recently and it included some blood tests. One of them showed that my cholesterol levels rose a bit since last year.

Dear Doctor: My wife overindulged on her birthday and wound up with a pretty fierce hangover — headache, nausea, brain fog, the works. She got so much weird advice that

Q: My sister and I are roommates, and we are both back to in-person work. We keep getting sick because coworkers with the flu won't stay home and aren't careful. I doubt we are the only ones wishing for a code of good behavior for when you're sick. Can you talk about that?

Dear Doctors: My sister and I are roommates, and we are both back to in-person work. We keep getting sick because co-workers with the flu won't stay home and aren't

HDL, aka the good cholesterol, helps usher cholesterol out of the blood. LDL molecules, the so-called bad cholesterol, are larger and stickier than HDL.

Dear Doctors: My sister and I are roommates, and we are both back to in-person work. We keep getting sick because co-workers with the flu won’t stay home and aren’t careful. I doubt we are the only ones wishing for a code of good behavior for when you’re sick. Can you talk about that?

DEAR DOCTOR: My wife overindulged on her birthday and wound up with a pretty fierce hangover -- headache, nausea, brain fog, the works.