A rainbow image of the brain reminds viewers about how addiction and depression may share brain circuitry

Addiction and Depression May Share Brain Circuitry

Depression and addiction often go together. While about 10 percent of the general population will develop a substance use disorder, in people diagnosed with depression that number is around 30 percent. The connection between substance use and depression is complicated. Depression can lead to addiction as a form of self-medicating and addiction can also lead… Continue Reading Addiction and Depression May Share Brain Circuitry

a doctor studies a medical interface and wonders does alcohol kill brain cells

Depression Isn’t All in Your Head, Part 1: Problems with the Standard Model

This is the first of three posts based on the work of writer Johann Hari, whose search for answers about his own depression led to his book Lost Causes: Uncovering the Real Causes of Depression–and the Unexpected Solution. Most of us are familiar with the standard explanation for depression: depression is the result of a… Continue Reading Depression Isn’t All in Your Head, Part 1: Problems with the Standard Model

a son asks his father how does marijuana affect teens brains

How Does Marijuana Affect Teens’ Brains?

With marijuana legalization for either recreational or medical use spreading across the US, Americans’ attitudes towards marijuana are quickly changing. More people see marijuana use as safe and socially acceptable. While marijuana does appear to be safer and less addictive than many substances, especially when only used occasionally, there are still risks associated with it,… Continue Reading How Does Marijuana Affect Teens’ Brains?

brain image makes person wonder how does thc affect your brain

How Does THC Affect Your Brain?

THC is the main psychoactive ingredient in marijuana. Its structure is very similar to a chemical called anandamide, which occurs naturally in the brain. Anandamide is a kind of neurotransmitter called an endogenous cannabinoid, meaning it’s a cannabis-like chemical made by your brain. Anandamide affects various brain areas, including those related to pleasure, memory, concentration,… Continue Reading How Does THC Affect Your Brain?

a doctor taps a medical interface and thinks about how brain scans may diagnose bipolar disorder

Brain Scans May Diagnose Bipolar Disorder

A recent study suggests that brain scans may someday be able to more accurately distinguish bipolar disorder from major depression. The researchers used an MRI machine to study how patients’ brains reacted to seeing various kinds of facial expressions. They were particularly interested in the amygdala, an area of the brain–technically two areas–which is responsible… Continue Reading Brain Scans May Diagnose Bipolar Disorder