Volcanoes have long been known to have an impact on climate - the 1815 Tambora volcanic eruption is famous for its impact on climate worldwide, making 1816 the 'Year Without a Summer'.

Maybe they are the reason global warming has not taken off the way climate researchers estimated it would. Sulfur dioxide gas that eruptions expel might be cooling the atmosphere more than previously thought, contributing to the recent slowdown in global warming, according to a new study.

You can't catch attention deficit hyperactivity disorder (ADHD) but you wouldn't know that by the way diagnoses are spreading - up 10X in some countries. 

Neurons - cells in the brain that communicate chemical and electrical information - belong to one of two groups, inhibitory or excitatory. Much is known about excitatory neurons but not so much for inhibitory ones.

An epidemiology analysis finds that acculturative stress, which is a term created to highlight that immigrants straddling two different cultures have greater stress than natives, is the reason Latino youth in Indiana have higher suicide and depression rates than white counterparts.

Young people are forced to be one thing in their homes and then also part of the larger outside culture and the conflict
between Latino teens and their parents regarding what they do and how they should act at, for example, school versus home, adds to the pressure of teenage years.

A new study finds that people of 1914 may have had worse memory than people of 1814. The reason is partially hydrogenated oil - trans fats - that became a cheaper, healthier replacement for the saturated fats in butter. Crystallized cottonseed oil - Crisco - came onto the marketplace in 1911 and it revolutionized pie crusts but now the government says they should be banned and they now have a new reason why.

A single gram of turmeric at breakfast could help improve the memory of people who are in the very early stages of diabetes and potentially at greater risk of cognitive impairment.

Turmeric is widely used in Asian cooking. Its characteristic yellow color is due to curcumin, which accounts for 3 to 6 per cent of turmeric and has been found in some studies to reduce the risk of dementia. The finding has particular significance given that the world's aging population and higher risk of dementia.

Monash University Professor Wahlqvist recently led a study in Taiwan that tested the working memory of men and women aged 60 or older who had recently been diagnosed with untreated pre-diabetes.

Cocaine users complaining of chest pain may have microvascular dysfunction, improper blood flow through the smallest blood vessels that may not be detected in regular testing, putting these patients at risk for heart complications or death, according to research presented at the American Heart Association's Scientific Sessions 2014.

It is a weekly event in epidemiology - some medical or health outcome is linked to socioeconomic inequality, as if more spending makes people healthy.

In America, and to a much less extent in Europe, there can be a lot of angst when an aerospace engineer wears the wrong shirt on television. Women have a great deal of power in western nations, so much so that they can overwhelm science breakthroughs with cultural Gerrymandering.

We like to think of evolution as a fine-tuning process, one that whittles away genetic imperfections and redundancies and converges on a more efficient system because of 'survival of the fittest'.

But natural selection is just one mechanism of evolution and what is fittest at one point may not have been fittest at another, yet could still be inherited. Our bodies are full of parts that we inherited and either don't work anymore or are rather buggy and other parts have simply found a way to make work.