Author: LISA DRAYER, CNN

Is collagen the Fountain of Youth?

As you age, a glance in the mirror may reveal a few fine lines, wrinkles, age spots and sagging skin. You may become more worried about the thickness of your hair, your creaking joints or a loss of muscle.

Sunscreen could cause vitamin D deficiency

Exposing skin to sunlight is a convenient way to meet our vitamin D needs, which is crucial for bone health. That might make you wonder: Does wearing sunscreen interfere with vitamin D levels and potentially cause vitamin D deficiency?

Are plant-based burgers good for you?

If you're looking for a vegetarian burger instead of a beef-based burger, you're in luck these days. Two popular options include the Impossible Burger, in over 5,000 restaurants in the United States, Hong Kong, Macao, and Singapore, and the Beyond Burger, available at more than 35,000 locations, including the meat aisles in supermarkets.

Why is pizza so addictive?

A deliciously fresh pizza pie with warm baked dough, salty tomato sauce and gooey cheese is a delight for the senses. There are few foods that could satisfy me on a daily basis, but pizza is one of them.