From Humble Grass to Worldwide Staple: A History of Wheat

Staple crops are foods that shape the dietary foundations of one or more regions. Rice, wheat, and corn provide over half of the world population’s caloric intake. In this lesson, we learn about the history of wheat and its global impact.

The Collapsed Lung: Types of Pneumothorax

Pneumothorax also known as collapsed lung occurs when air is trapped in the pleural space. Trapped air causes a loss of negative pressure in the pleural cavity, reduces surface tension, and induces the lungs to collapse. There are 3 types of Pneumothorax or collapsed lungs: 1) Spontaneous 2) Traumatic, and 3) Tension Pneumothorax.

In this lesson, we learn the different types of pneumothorax (collapsed lung) and important terminology. USMLE

A Global Epidemic: The Novel Coronavirus

A Global Epidemic: The Novel 2019 Coronavirus

On December 31st, 2019, Chinese officials informed the World Health Organization that a group of strange cases of pneumonia were detected in the city of Wuhan. The cause of the pneumonia was unknown, but a week later, Chinese health officials confirmed that the cases were associated with a novel coronavirus.

In this lesson, we learn about what is the coronavirus, how the coronavirus spreads, how deadly it is, and why COVID-19 matters for our public and global health.

Manifest Destiny: US History

Manifest Destiny in US History: During the 19th century, the term Manifest Destiny was coined – a belief that America was readily destined to expand its territory across the continent. In this lesson, we explain important events and people that influenced Manifest Destiny, including Mountain Men, Lewis and Clark, Mormons, and the Gold Rush.