70 percent of Americans who the National Sleep Foundation estimates get less than the generally recommended eight hours of sleep per night

A nasal spray containing a naturally occurring brain hormone called orexin A reversed the effects of sleep deprivation in monkeys, allowing them to perform like well-rested monkeys on cognitive tests.

[[Fn+1 Fn] [Fn Fn-1]] = [[1 1][1 0]]^n

The Sinaloa cartel can buy a kilo of cocaine in the highlands of Colombia or Peru for around $2,000, then watch it accrue value as it makes its way to market. In Mexico, that kilo fetches more than $10,000. Jump the border to the United States, and it could sell wholesale for $30,000. Break it down into grams to distribute retail, and that same kilo sells for upward of $100,000

the average heist in the States only nets $4,330.00

The name comes from a joke about a Texan who fires some shots at the side of a barn, then paints a target centered on the biggest cluster of hits and claims to be a sharpshooter

a part of the human visual system which might be specialized for facial recognition,

the experience of seeing meaningful patterns or connections in random or meaningless data.

a technique of divination using molten metal. Typically molten lead or tin is dropped into water.

a psychological phenomenon involving a vague and random stimulus (often an image or sound) being perceived as significant. Common examples include seeing images of animals or faces in clouds, the man in the moon or the Moon rabbit, and hearing hidden messages on records played in reverse.

a congenital defect in which the heart is situated on the right side of the body

types.ClassType

We can provide a custom metaclass by setting __metaclass__ in a class definition to any callable that takes the same arguments as type.

When the Python interpreter executes a class statement […], it calls type with the following arguments:

• The name of the class as a string
• A tuple of base classes - for our example this is the ‘one-pl’ 1
• A dictionary containing members of the class (class attributes, methods, etc) mapped by their names

1mA of current through the human body can be felt, 10mA of current is sufficient to make muscles contract to the point where you cannot let go of a power source, and 100mA is sufficient to stop the heart.

a descriptor is an object attribute with “binding behavior”, one whose attribute access has been overridden by methods in the descriptor protocol.

Descriptors that only define get are called non-data descriptors (they are typically used for methods but other uses are possible).

If an object defines both __get__ and __set__, it is considered a data descriptor.

overriding __getattribute__ prevents automatic descriptor calls