Homemade organic sunscreen with only 4 ingredients

A few weeks ago, I wrote about the best beach and sport sunscreens for your skin, products free of the wrong chemicals and containing the right ones. A solid way to avoid those nasty sunburns. In the spirit of Zero Waste, and avoiding those plastic bottles, here is an even better product – homemade sunscreen.   …

Scientists figure out why sun overexposure makes our skin sore (a sunburn!)

A group of scientists have figured out (at least in part) why overexposure to UV light makes our skin get sore, red and swollen. It goes like this: You sit out in the sun too long. (As if you haven’t been told.) Inside your skin cells, that little RNA molecule is damaged by UV-B — …

The best beach & sports sunscreens

The best sunscreen is a hat and a shirt. No chemicals for the skin to absorb, no questions about whether the product works, no bogus claims like “sunblock.” (No conventional product blocks out all rays. That’s why the FDA is trying to ban the term. ) But when you can’t avoid exposing your skin to …

How do octopuses navigate?

One researcher, Jennifer A. Mather, wondered: how do octopuses navigate? Do they rely on chemotactile sensory information (i.e. movement based on chemicals in the environment), or do they orient towards visual landmarks? Octopuses occupy “homes” for several days or in some instances for several weeks, and when they go out looking for food, they are sometimes gone for several …