As doctors warn it can cause a dangerous reaction with a host of common drugs... 1  Researchers warn that grapefruit reacts with many medicines. 2  The fruit can cause devastating side-effects from stomach bleeding to kidney problems. 3  Doctors say the public is ignorant to the dangers and putting themselves needlessly at risk.
According to the definition of the question (based on light reflection and not light emission), a well-polished mirror is the the whitest substance on earth. The main reflection layer is usually made out of silver.
If you think itâs a sloth, think again. They are like Usain Bolt compared to other things found on our planet. We hear a lot about the fastest things on Earth, the peregrine falcons, sailfish and cheetahs of this world. But what are the slowest? Earth Unpluggedâs Maddie Moate discovers that animals that live life in the slow lane, like tortoises, sloths and garden snails, are the masters of survival. But they are positively speedy; there are much slower things to be found on our planet. For more videos subscribe to the Earth Unplugged channel on YouTube.