One to two pillows is the best amount for those who sleep on their back or side, experts say.

Fact

Couples who work out together are more likely to stay together.

Not only do you have a built-in workout partner who helps you achieve your fitness goals, but the benefits of working out together have positive effects on your relationship.

A study found that couples partaking in exercise together boosted the quality of their relationship.

Working out together combines ‘us time’ with exercise to slot into your busy schedule.

Myth

The Great Wall of China is the only man-made structure visible from space.

Many people have been told that the Great Wall of China is the only man-made structure visible from space, but that’s just not the case.

This false fact most likely developed as an attempt to convey the grand scale of the wall. From low space at 180 miles high, the Great Wall is not the only visible object, nor is it the most distinguishable. NASA images prove you can see “highways, airports, bridges, dams, and components of the Kennedy Space Center. And if you go further into space, the wall can only be recognized in radar images, not with the human eye or even with a photograph.