It's no secret that a lot of people eat when they are depressed, and that social distancing, fear, and isolation during COVID-19 lockdowns and other government restrictions caused some depression to be worse.

Being young is always a time of struggle and the pandemic saw a resulting surge in obesity, which has meant a surge in type 2 diabetes.

People who buy electric cars don't understand a lot about energy generation. They may believe that solar panels and wind are providing the energy, but even after $3 trillion in subsidies, those have not changed the percentage of energy generated by mainstream sources, like natural gas.

Their second introduction to reality is charging. If you are sleeping, and can sleep well knowing your electric car charging is equivalent load to an entire extra house on the grid, long charging times are fine, but it makes long trips a source of anxiety for most.

Mitochondria provide the lion’s share of energy that cells need to function normally, so genetic defects in mitochondria can cause severe diseases that can be devastating if not caught and treated early.

Mitochondria remain important throughout our lives. People with higher mitochondria function age 'better.' 

Yet how mitochondrial defects lead to disease and aging has not been well understood. A paper published today in Aging Cell links mitochondrial dysfunction to the shortening of telomeres,  specialized DNA sequences that act as caps that stabilize the ends of chromosomes, and premature aging. 

The good news for public health is that there have been significant decreases in past-month cigarette smoking by young adults and recreational use of opioid medications in the past year compared to 10 years ago. The same goes with alcohol, which is still the most used substance but has seen declines in past-year, past-month, and daily drinking.

A common first step in embryonic development is that an egg meets a sperm but in a Weizmann Institute of Science study published today in Cell, researchers have grown synthetic embryo models of mice outside the womb by starting solely with stem cells cultured in a petri dish.

Without the use of fertilized eggs.

Before every Marvel film premiere, comic books related to the characters almost always rise in value. People who speculate buy them from sellers. It's a bad idea.

In other parts pf culture, people who read about trendy topics like working-from-home and the metaverse and buy exchange traded funds (ETFs) will also likely be disappointed. Researchers found that ETFs based on these and similar hot topics earn an average return about 30 percent lower than more diversified funds over the five years after they are launched.