Somnology Somnology Somnology is the scientific study of sleep. It includes clinical study and treatment of sleep disorders and irregularities. Sleep medicine is a subset of somnology. After the invention of the EEG, the stages of sleep were determined in 1936 by Harvey and Loomis, the first descriptions of delta and theta waves were made by Walter and Dovey, and REM sleep was discovered in 1953. Sleep apnea was identified in 1965. In 1970, the first clinical sleep laboratory was developed at Stanford. The first actigraphy device was made in 1978 by Krupke, and continuous positive airway pressure therapy and uvulopalatopharyngoplasty
Role of chance in scientific discoveries the first curious finding. Accidental discoveries have been a topic of discussion especially from the 20th century onwards. Kevin Dunbar and Jonathan Fugelsang say that somewhere between 33% and 50% of all scientific discoveries are unexpected. This helps explain why scientists often call their discoveries "lucky", and yet scientists themselves may not be able to detail exactly what role luck played (see also introspection illusion). Dunbar and Fugelsang believe scientific discoveries are the result of carefully prepared experiments, but also "prepared minds". The author Nassim Nicholas Taleb calls science "anti-fragile". That is, science can actually use — and benefit from