You know how, if you eat a lot of garlic, your skin may smell like garlic? Your lungs excrete that garlic, too. One easy way to support lung health on a red-alert day is to eat this favored bulb (pick some up at this week's farmers market). It keeps the fluids moving so the lungs don't become congested.

That's just one tip from Merry Lycett Harrison's Herbal Help for Healthy Lungs in the January CATALYST. You'll find an app for tracking air quality and a list of air-cleaning house plants that NASA recommends (though it takes a LOT of plants). Read Part 4 of our Air Quality Series: This month Margie McCloy offers simple actions to lessen your car's impact on SL Valley's air quality .

Polly Plummer Mottonen designed this month's beautiful cover to help us visualize clear air and healthy lungs. It kicks off CATALYST's "Love Your Lungs" campaign - reminders to  thank your body's main interface with the world. Over the next few months, in addition to the politics and lifestyle issues of air quality, we'll bring you helpful info on supporting healthy lungs as well as suggestions to tune in to this body part and offer a nod of thanks.

John writes about moral compasses in light of gay marriage, John Swallow and the Snowden affair. Alice Toler interviews the director of the federally funded study that is treating PTSD with MDMA (street name: Molly or Ecstacy). Chris Gleason checks in on a useful store in Murray called Urban Farm & Feed in his new "Seeds and Sawdust" column. Katherine Pioli shares tips and tools on how to ride a bus, and also talks to Sharon Leopardi about her face-saving "urine cure".  There's lots more. Get started now. Oh, and you'll find a few of this week's events listed below.

Have a great week!