Having very pale lips could show that you have an iron deficiency or that your thyroid gland doesn't work properly. They can also suggest some heart conditions or lung problems.
Cracked lips that are not due to seasonal changes could show diabetes as the high level of glucose could encourage candida (a yeast infection).
Finally, if you get bleeding gums, it is often a build up of plaque due to bad oral hygiene. You need to brush twice a day and remember to floss to avoid this.
Tools designed to ensure computer code in smart cars does not crash has been inspired by hungry penguins.
The rounded sleeping capsules send guests drifting into ocean before arriving on desert island by morning.
Sitting on the saddle activates the part of the brain responsible for learning, a study has claimed.
Scientists are appealing for more people to donate their brains for research after they die.
Life on Earth may have arrived from Mars on an asteroid, scientists have claimed.
Lunar mission scheduled at the end of 2017 could find out if beer can be brewed on the moon.
A bottle used to teach children how far litter can travel ended up on Scottish beach after 8,700-mile journey.