That means making some difficult decisions with elderly patients, and going against the misguided belief that when it comes to health care, more is always better.
"Being funny isn't necessarily an indicator of good social skills and well-being," his research has shown, "it may just exactly be a sign of personality flaws."
However, in recent years, evidence has shown that training programs designed primarily to improve muscular strength and endurance might also offer some health benefits as well.
The marketing is tempting: Get stronger muscles and healthier bodies with minimal effort by adding protein powder to your morning shake or juice drink.
Advocates for healthful eating have long tried to steer Americans away from highly processed foods that contain dozens of unnatural and unpronounceable ingredients.
European health experts have said other European countries should see the severe flu hitting Britain at the moment as a warning of what might be coming to them soon.
Women who are very overweight (obese) face the risk of serious health problems during pregnancy, such as diabetes and high blood pressure, and may have a more difficult birth.