Smoking intensity in coronary heart disease risk

Smoking causes increased relative risks for coronary heart disease, so the number of cigarettes must also. If you smoke twice as many cigarettes, your risk should be twice as high, right? 

A new study instead says it's time spent smoking, not quantity of cigarettes. 

Deep brain stimulation doesn't improve memory - it hurts it

Deep brain stimulation (DBS) of areas in the brain known to be involved in making memories does not improve memory performance, according to a new study

Deep brain stimulation is an invasive technique that involves the implantation of electrodes deep into the brain and then running current through them to electrically stimulate nearby neurons. 

Smoking during pregnancy may make your child abuse drugs and alcohol

Smoking during pregnancy may make your child abuse drugs and alcohol

Smoking during pregnancy is a well-known risk factor for many health problems in children, including low birth weight, heart defects and asthma. In our latest study, we show that smoking in pregnancy also increases the risk for children’s later tobacco smoking, as well as alcohol and cannabis use. This effect may be partly explained by so-called epigenetic changes at birth, in genes important for brain function and development.

Cellular switch to turn off asthma attacks

Using human immune cells, researchers report they have identified a critical cellular "off" switch for the inflammatory immune response that contributes to lung-constricting asthma attacks. The switch, they say, is composed of regulatory proteins that control an immune signaling pathway in cells.

This is your brain on God

Religious and spiritual experiences activate the brain reward circuits in much the same way as love, sex, gambling, drugs and music, according to a psychology paper based on interpretations of brain scans.

Osteopaths defend Kratom as opioid alternative

Over a year ago, trade reps for the kratom supplement business began calling everyone in media hoping to get scientific and political coverage for protesting a DEA ban they suspected was coming. Sure enough, it did, but much of the work that went into progress at that time is now bearing fruit for the kratom sales industry.

Saturated fat is bad for you again, finds weak observational study

Data from 73,147 women involved in the Nurses' Health Study between 1984 and 2012, and 42,635 men who were in the Health Professionals Follow-up Study between 1986 and 2010, correlates saturated fats in red meat, dairy, butter, lard, and palm oil, may increase the risk of coronary heart disease.

Significantly more radioactivity in infant formula than reported

Based on measurements of radioactivity in samples of infant formula manufactured and sold around the world, researchers estimate that infants 1 year of age or younger who consume these formulas would ingest a significantly higher radioactivity dose than reported levels, but lower than internationally recommended limits. The researchers report the radioactivity levels for each brand of formula in an article published in Environmental Engineering Science, http://online.liebertpub.com/doi/full/10.1089/ees.2015.0114.

Good news: Animal species in today's oceans most diverse ever

One of the most frustrating claims by people raising money promoting an environmental apocalypse has been that species are about to go extinct or diversity will be lost. It leads to rampant distrust in science because advocates know if their side is spinning facts to suit an agenda, the science side might be too.

A simpler way to estimate the feedback between permafrost carbon and climate

A simpler way to estimate the feedback between permafrost carbon and climate

One of the big unknowns in predicting climate change is the billions of tons of carbon frozen in Arctic permafrost. As global warming causes soil temperatures to increase, some of this carbon will decompose and enter the atmosphere and accelerate climate change.