The sea squirt begins its life moving around until  it finds a good location to attach itself, whether it is to the hull of a boat, undersea rocks, or the ocean floor. Then its body will "eat" its brain and spinal cord to conserve energy. It never moves after that.

Does it make you wonder what happens to humans who sit around for most of the day? 😅 

Face! It is the massetor—good for clenching, grinding and munching anything we throw in our mouths. It's also the one that gets tensed up when we are angry or stressed out.

When you think you are multitasking, you are actually switching contexts. That is, rather than working on multiple tasks simultaneously, we quickly flip between them. The harm that "multitasking" can do is described in the book Brain Rules: According to research, you make 50% more mistakes and take twice as long to complete tasks.

Primary headaches may result from chemical activity in the brain, in the nerves, blood vessels, or muscles of the head and neck, or from a combination of these factors. If it's the muscles, then try some somatic exercises!