pollen

SYSK Selects: Gesundheit! How Allergies Work

In this week's SYSK Select episode, about 30-40 percent of humans suffer from some sort of allergy. The big joke, though, is that every sufferer is the victim of mistaken identity. Allergies are the result of a hypersensitive immune system mistaking a harmless protein for a foreign invader.

How Pollen Works

For about 375 million years, plants have been using pollen (aka plant sperm) to propagate their species. And the technique has stuck around because it works. Join Chuck and Josh for a cozy look at the ins and outs of plant reproduction.