It’s (K) Complex

Figure - fictionalised neural activity showing stage two NREM activations - public domain image by Wikipedia User Neocadre K-complexes are patterns of activity in which the voltage across the scalp rises then drops. K-complexes seem to kick off a period of reduced firing between neurons, perhaps because of the massive changes in the neuron’s polarity. … Continue reading It’s (K) Complex

Natural short sleepers – best. Mutation. Evah

There are some extraordinary people who can get by on about three-quarters of the amount of sleep that the rest of us need. One particular family has a mutation that allows them to function normally on just six-and-a quarter hours of sleep per 24 hour period. This family was studied by geneticists, who found that … Continue reading Natural short sleepers – best. Mutation. Evah

Tumour necrosis factor makes you sleepy…

How we fall asleep isn’t widely understood. Of the fifty or so peer-reviewed papers I have sitting on my desk, about 45 conclude that sleep is complicated. The other five conclude that it’s really complicated. That’s because we can only look at the activity of the human brain through snapshots of its metabolism or its … Continue reading Tumour necrosis factor makes you sleepy…