If norepinephrine is present during REM sleep, it can reinforce or amplify the emotional component of a traumatic memory

Overview Debates Related claims Topics

The Toba supervolcano eruption occurred approximately 70,000 years ago, severely reducing the global human population

Ice core samples dating to approximately 11,000 years ago reveal elevated concentrations of iridium associated with the Younger Dryas impact hypothesis

German chemist Fritz Haber developed the industrial Haber-Bosch process for synthesizing ammonia directly from atmospheric nitrogen

Fritz Haber received the 1918 Nobel Prize in Chemistry for Fritz Haber's work on ammonia synthesis

The 1883 Krakatoa eruption caused an absence of a normal summer season across Europe in 1884

Approximately 25 percent of poliovirus infections produce only mild clinical symptoms including fever, sore throat, or headache

Roughly 70 percent of individuals infected with the poliovirus remain completely asymptomatic

The pesticide atrazine alters sexual development in frogs, inducing complete sex reversal from male to female phenotypes

The 1883 volcanic eruption of Krakatoa injected atmospheric particulates that lowered global temperatures by approximately two degrees Celsius

In the human menstrual cycle, the follicular phase spans the first two weeks before ovulation

Estrogen and progesterone receptors are present in human cells throughout the body and brain

Cloud seeding requires introducing substances like silver iodide or dry ice into sub-zero clouds to trigger ice crystal formation and induce precipitation

On average, only one out of every ten clouds precipitates naturally without weather modification

Artificially dissipated thin clouds yield less than one millimeter of precipitation at the surface

Homo sapiens depends continuously on Earth's biosphere and other biological species for air, water, and nourishment

In her book Aligned, Dr. Kristin Holmes outlines the HEAL trauma recovery framework, representing Heart, Energy, Autonomy, and Love

Psychological trauma functions as a physiological injury that directly imprints upon and alters the autonomic nervous system

In the Swiss underwear soil health study published in August 2026, cotton decomposition rates in agricultural fields and meadows ranked between private gardens and lawns

In August 2026, Swiss researchers published findings demonstrating that cotton underwear decomposed slowest in lawns and fastest in private gardens

In 2021, Swiss researchers asked farmers and volunteers to bury cotton underwear for two months to measure soil decomposition rates