Time Warp: Close Shave
Straight razors cut hair very close to the skin, which can occasionally lead to an ingrown hair. The cut end of the hair gets caught under the skin and can't get out. Watch this video from Discovery Channel's "Time Warp."
Most Watched in Life Science
Birth Day: Natural Childbirth
In this Birth Day clip, a condition of preeclampsia causes the doctor and patient to change their original plan on a completely natural childbirth.
100 Greatest Discoveries: Theory on Germs
In 1846 Vienna, childbed fever caused death among many pregnant patients. Consequently, Dr. Ignaz Semmelweis began an experiment where his doctors washed their hands. Learn more about this experiment on the Science Channel's "100 Greatest Discoveries."
Human Body: Bone Strength
After being pulled out of his home by a tornado, a man lands in a nearby field with no significant injuries. The strength of his bones protected him. Bones' resiliency is discussed in this Discovery Channel video.
Kapow Superhero Science: Muscle Genes
How much muscle can a human actually build? Tests on mice show that it's possible to genetically build muscles that don't weaken with time or age. Learn more about muscles on The Science Channel's "Kapow! Superhero Science."
Stephen Hawking's Speaking Eyes
Shortly before leaving to go on a zero-gravity flight, physicist Stephen Hawking spoke with reporter Irene Klotz. Learn how Mr. Hawking, who has ALS (Lou Gehrig's Disease), uses his eyes to speak through a computer in this video.
100 Greatest Discoveries: Blood Flow Theory
English physician William Harvey's studies on blood flow were breakthroughs in understanding the human heart and the circulatory system. Learn more about blood flow on the Science Channel's "100 Greatest Discoveries."
100 Greatest Discoveries: Discovery of X-Rays
German physicist Wilhelm Roentgen accidentally stumbled on this world altering technology. X-Rays had radiation capabilities then unknown to scientists. Learn more in the Science Channel's "100 Greatest Discoveries."
100 Greatest Discoveries: Synthesis of Urea
Before Friedrich Wöhler created urea, scientists believed that organic substances were unable to combine with inorganic substances. Learn more about the discovery of urea on the Science Channel's "100 Greatest Discoveries."
100 Greatest Discoveries: Genetics and Gregor Mendal
Through calculated cross breeding of garden peas Gregor Mendel discovered a pattern of dominant and recessive traits which led to groundbreaking advances in the field of genetics. Learn more on The Science Channel's "100 Greatest Discoveries."
Recent Videos in Life Science
Buried Alive: The Emotional Wall
During a tour of the house, Dr. Beaton notices the family has built a wall of trash in front of a living room cabinet that contains items belonging to the couple's deceased son.
Embalming videos on HowStuffWorks include the best, most popular Embalming videos anywhere on the Web. Check out our Embalming videos.
Freaky Eaters: Natural Highs
Amy is addicted to the rush and high of caffeinated drinks. Now she's about to meet a trapeze artist who's ready to show her a natural alternative.
Mutant Planet: The Kiwi
The Kiwi is a strange-looking creature, found only in New Zealand. Every aspect of this funny little bird suggests that the Kiwi is an evolutionary oddity.
Hoarders: Ray's Bunk Bed
Check out this clip from TLC's 'Hoarders' show to learn more about the debilitating mental disorder known as hoarding.
Is It Possible: Real Life Popeye
Born with a rare genetic characteristic causing his left arm to be 3 times the size of his right, Matthias Schlitte decided to turn his disability into his advantage....as a professional arm wrestler.
Mythbusters: Five Second Rule
We've all heard of the five-second rule, but is there any evidence to back it up? Tune in and learn more in this clip.