Starfish can regrow lost arms, and salamanders can sprout new limbs.
So why can’t we?
Sci Show explains the science of regeneration, and explores the limitations the humans face — and are trying to go beyond.
The body can’t store alcohol so it metabolizes it right away. Since the alcohol becomes priority in the metabolic process, your body won’t metabolize other fats and sugars as efficiently which ultimately slows your metabolism down over time and as such, can contribute to weight gain.
Here is an infographic from Lucas James Celebrity Trainer that looks at alcohol and weight gain.
Why do we grow old? Integrative Biologist Joao Pedro de Magalhaes explains what aging is and how we can extend our lifespan.
You don’t have to get older. There’s a traditional alternative, but it’s unpleasant.
Aging may appear to be inevitable, but Dr. João Pedro de Magalhães, a biologist at the University of Liverpool, disputes that. He’s devoted his scholarly life to studying the process of aging.
The artists behind Ph.D. Comics, a funny webcomic about the graduate school lifestyle, produced this video. They illustrate a talk by Dr. Magalhães on the subject of aging. What is the process of aging at the cellular level? We don’t know for sure, but Dr. Magalhães explains three major hypotheses. He also describes what we may be able to learn from age-resistant animals, such as the naked mole rat.
This video explains why you get garlic breath, and how to get rid of it.
Enjoy!
Garlic is good for your body, great for your taste buds, but terrible for your breath. This episode looks at the plant beloved by chefs and feared by vampires. Once again we teamed up with the Compound Interest blog to break down the chemistry of garlic, and how to beat the bad breath it causes.
There are four main volatile organic compounds that contribute to garlic breath. None of them are actually present until garlic is crushed or chopped. These compounds also contain sulfur, which can penetrate bacteria cell membranes, making garlic an antibacterial assassin.
SciShow series Quick Questions host Hank Green explains the science behind why humans are ticklish. Green also explains that the concept of tickling actually breaks down into two parts, knismesis and gargalesis, and suggests tickling may be a form of self-defense training.
Description:
What’s up with ticklishness? And are other animals ticklish, too? Quick Questions has the answers!
