The food pyramid has changed. Here's what you need to know.

It’s important to understand what over-the-counter biological age test kits can — and can’t — do before buying them.

Dec 3 () - Lockheed Martin said on Wednesday it has opened a ​hypersonics system integration lab at ‌its Huntsville campus as it pushes to develop ‌next-generation weapons. Hypersonic weapons, which can travel at more than five times the speed of sound and evade traditional defenses, are ⁠at the ‌centre of an arms race between the United States and China.