An asteroid impact triggered the K-Pg mass extinction, wiping out the non-avian dinosaurs, ending the Age of Reptiles, and ushering in the Age of Mammals. But why was it the mammals who triumphed?

Steroids. They've caused global scandals. They're banned in most athletic competitions. Yet the same properties that help elite athletes and bodybuilders improve performance also make steroids valuable for treating many illnesses and...

It has been two years since "The Dress" divided the internet. A Japanese psychology professor created the new mind-boggling image that has been making the rounds on the internet. Meanwhile, the new study shows the truth about sex...

Hank talks about the molecules that make up every living thing - carbohydrates, lipids, and proteins - and how we find them in our environment and in the food that we eat.

Steroids: they're infamous for their use in sports. But they're also found in inhalers, creams to treat poison ivy and eczema, and shots to ease inflammation. The steroids in these medicines aren't the same as those used to build muscle....

In this video, we examine the conversion of cholesterol to all of the major steroid classes: progestogens, mineralocorticoids, glucocorticoids, androgens, and estrogens.

In this video, we will discuss the biosynthetic pathway for human pheromones in both males and females; and discuss their implications.

Nuclear Receptors

This video explores the roles of sulfation of DHEA and estrone by sulfotransferase enzymes.<br/>
ATP Sulfurylase

In this video, we explore the mechanism of LDL-mediated cholesterol delivery to peripheral cells.

Este programa de video de accion en vivo es sobre la palabra sistema solar. El programa esta disenado para reforzar y apoyar la comprension y retencion del estudiante de la palabra sistema solar mediante el uso de secuencias de video,...

Este programa de video de accion en vivo es sobre la palabra asteroide. El programa esta disenado para reforzar y apoyar la comprension y retencion del estudiante de la palabra asteroide mediante el uso de secuencias de video,...

U.S. President Donald Trump has received a number of different treatments for coronavirus, including investigational drugs

Este programa de video de accion en vivo es sobre la palabra meteoro. El programa esta disenado para reforzar y apoyar la comprension y retencion del estudiante de la palabra meteoro mediante el uso de secuencias de video, fotografias,...

If you don’t have referrals, you won’t be in business for very long. As the saying goes, “We have not because we ask not!” Nothing could be truer than in the referral business. If you want referrals, you need to go out and get them. If...

Learn the Sounds of American English! This video covers the OY [__] Diphthong. Perfect your American Accent!

In the search for a quick route to a muscular physique, many young men turn to controversial anabolic steroids to achieve their goals. But in the wake of deaths in the bodybuilding community, do the statistics showing a fourfold increase...

Explain the mechanism of action of steroid and non-steroidal hormones.

In this video, we explore two conditions that result in abnormal levels of the hormone, cortisol: Addison’s disease & Cushing’s disease.

The actress was seen attending an event at a hospital in south Mumbai where she spoke about the importance of spreading awareness about liver ailments

U.S. President Donald Trump has taken various drugs, including the steroid dexamethasone, which respirologist Dr. Samir Gupta says can lead to various neurocognitive side effects such as confusion and agitation.

Dr. Theresa Tam, Canada's chief public health officer, says Canada will "look with great interest" and closely examine the results from trials of the steroid dexamethasone as a treatment for COVID-19. Researchers in England say that they...

These days, you don’t have to scroll too far to find influencers hyping up big muscles and masculine workouts. CBC’s Anya Zoledziowski examines steroid use among young men and uncovers a dark side to the growing pressure to be jacked.

1. Wide shot from back of committee hearing room

2. Witness
table
3. Senator Charle
s Grassley
4. Witness table
with Don Hooten
5. Still photogr
aph of Taylor Hooten
6. SOUNDBITE: (English)...