Fast-Food Linked to Depression

A recent study out of the University of Las Palmas de Gran Canaria shows that people who eat fast food are 51% more likely to develop depression.
The researchers studied 8,964 people over a six-month period. None of the participants had been previously diagnosed with depression or had taken anti-depressants. Yet at the end of the study, 493 were diagnosed with depression or had started taking anti-depressants.
The study showed that people who ate fast food were more likely to be single, with poor dietary habits and less likely to be active. They also tended to smoke and work longer hours per week. It also revealed that the more fast food a person ate, the higher their risk to develop depression.
This new study supports a similar one performed in 2011 where 12,059 people were also studied over a six-month period. In that study, a 42% increase in risk for depression was found.
While little is known about the relationship between diet and depression, studies such as these are revealing some of the effects of certain foods or diets on mental health.
Source
http://www.sciencedaily.com

Muscles DO NOT Flex

There is one expression that really stands out as my all-time biggest pet peeve; “flexing your muscles.”
Muscles do not flex. Certain joints, such as the knee or elbow flex, but muscles do not.
Muscles are pretty simple and do one thing –they contract. Basically they are made up of two types of filaments called Actin and Myosin that run in parallel with each other. When a signal is sent from the brain down the nervous system to the muscles, these filaments slide over one another. This sliding action makes the muscle shorter and thicker until the filaments release and slide back to their original length and thickness. There are a few different types of muscle contractions, concentric, eccentric, isometric and isotonic. But they all just contract, not flex.
Flexing, or more accurately, flexion, is a joint movement. For example, flexion of the elbow joint occurs when the biceps brachii muscles are contracted.