This site is not maintained. Click here for the new website of Richard Dawkins.

Brain Energy

How is energy involved in the pathology of Parkinson's Disease?

Published on September 30, 2011 by Emily Deans, M.D. in Evolutionary Psychiatry

Your brain uses a ton of energy. It's a small organ, maybe 2-5% of your total body weight, but it uses up to 20% of the energy you use in your body. That means for every plate of food, 1/5 of it goes to feed your noggin.

I have a lot more details about brain energetics in a previous post, Your Brain on Ketones. If you don't have a minute to look at that article, the down low is that, for various reasons, a ketogenic diet (very low carb and high fat, or moderately low carb and high medium chain triglyceride, such as coconut oil), seems to allow our mitochondria (the cells' energy factories) to make energy more efficiently. This ability is less important in our muscles (unless you are an elite athlete), but in our brain, which uses a ton of energy and relies on energy-expensive ion gradients to function properly, efficiency is paramount. Never so much as when you are talking about a brain disorder, such as epilepsy, migraines, Alzheimer's, or, as in the case of the paper I'm referencing today, Parkinson's Disease.
Read more



Blogging the Human Genome

Sam Kean - Slate Comments

Blogging the Human Genome

Scientists place 500-million-year-old...

- - Comments

Using a process called paleo-experimental evolution, Georgia Tech researchers have resurrected a 500-million-year-old gene from bacteria and inserted it into modern-day Escherichia coli (E. coli) bacteria. This bacterium has now been growing for more than 1,000 generations, giving the scientists a front row seat to observe evolution in action. Credit: Georgia Institute of Technology

Q&A: Plant scientists answer your...

- - Sense About Science 6 Comments

Welcome to this questions and answer session on cross fertilisation, which has also been called contamination, with Wendy harwood and Huw Jones.

Open letter and video re threat to GM...

Rothamsted Research - YouTube/Sense... 79 Comments

Add your support to the appeal from scientists at the publicly funded Rothamsted Research: Don't Destroy Our Research.

Finding Phenotypes

Edyta Zielinska - TheScientist 7 Comments

Genes shared across species that produce different phenotypes—deafness in humans and directional growth in plants—may reveal new models of disease.

Synthetic Genetic Evolution

Ruth Williams - TheScientist 9 Comments

Synthetic Genetic Evolution





Comment RSS Feed

Please sign in or register to comment