Actually there are 4 different biotypes of depression:
Types 1 + 4 = increased anxiety (related to fear-based regions)
Types 3 + 4 = more anhedonia and psychomotor retardation (related to areas governing reward, control of movement + initiating actions)
Types 1 + 2 = lower energy and fatigue (related to brain areas involved with motivation and decision-making)
“Regardless of biotype, the overall severity of depression was comparable among the 4 groups, though slightly less severe for type 2.”
Knowing which type responds to a certain treatment could help conquer depression much quicker! Transcranial magnetic stimulation (TMS) was most effective in type 1 and type 3, but not very effective for type 2 + 4.
Depression differs in men and women
Girls at the age of 15 are 2x as likely to suffer from depression as boys.
Men: More likely to get persistent depression with substance abuse and suicide
Women: More likely to get episodic depression
It seems that other brain regions are involved, too! I’m looking forward for further studies 🙂
Posts I really loved:
Nature vs. Nurture and Depression
The 5-HTTLPR gene, the promoter region for the serotonin transporter, could predict depression risk relating to abuse.
Chance of major depressive episode by age 26:
SS genotype: 63 %
SL genotype: 40-50 %
LL genotype: 30 %
Battling Your Inner Dragons
A geeky perpective on fighting depression like you’re in battlefield fighting against dragons – just great! When do you learn to tame your dragons?
There’s more to life than being happy
What makes people happy? Emily Esfahani searched 5 years for the solution and found out that there are 4 pillars of happiness:
- Sense of belonging
- Transcendence (meditation)
- The story you tell yourself
Hear her TED talk for details on these pillars!
Why get out of Bed?
She really perfectly describes her morning thoughts – I also know these crippling thoughts and the effort it takes to just stand up and do something. Sometimes you just have to be grateful that you have a job, a partner or pet that gives you a god-damn reason to move!
One Man’s Journey: How I Quit Porn and Why I’m Not Going Back
An older post but topically nevertheless: You’ll learn about the science of pornography addiction and what changed for the author after quitting porn. If you feel emotional disconnected to your partner – this may be for you (and this is not just for men watching porn)!