Ever wonder how your tax dollars are spent? Or why the American tax code is filled with loopholes and special interest provisions that serve the interests of tax lawyers, accountants and huge corporations? T. R. Reid, a longtime correspondent for The Washington Post and bestselling author, joins us for this week’s Please Explain about the American tax code. His latest book is A Fine Mess: A Global Quest for a Simpler, Fairer, and More Efficient Tax System. He’ll explain how our tax code works, how it differs from the rest of the world and how we can make it better.

For this week’s Please Explain, we discuss psychosomatic illnesses and the mind-body connection with Dr. Suzanne O’Sullivan. O'Sullivan is a neurologist and author of the book, Is It All in Your Head?: True Stories of Imaginary Illness. In her book, O’Sullivan chronicles the world of psychosomatic illnesses and shows how it can take over people’s lives.

Our latest Please Explain is all about navigating the high seas and using water to help you find direction in your everyday life. We’ll hear from explorer and natural navigation expert Tristan Gooley, author of How to Read Water: Clues and Patterns from Puddles to the Sea.

Do you have a question, or a story, about navigating through open water? Leave us a comment!

‘Tis the season for sniffles. Millions of Americans suffer from allergies, seasonal and otherwise. For this week’s Please Explain, Dr. Clifford Bassett, the founder and medical director of Allergy and Asthma Care of New York, joins us to explain what an allergy is (and isn’t), identify key triggers - from nuts to gluten to the nickel commonly used in cell phones - and offer both medical and nonmedical alternatives to treatment. Dr. Bassett’s book The New Allergy Solution: Supercharge Resistance, Slash Medication, Stop Suffering is out on March 21.

Dave Owen, Professor of Law at U.C. Hastings, joins us for this week's Please Explain to discuss the history of clean water legislation and what's at stake as the EPA attempts to roll back established water regulations. A recent executive order issued by President Trump instructed the EPA to review the "Waters of the United States" rule, an Obama-era clean water act that the president criticized for it's "horrible" treatment of small farmers and small businesses. Owen will discuss that 2015 water regulation, as well as the history and impact of the Clean Water Act of 1972 and the Safe Drinking Water Act of 1974.

Have questions about clean water regulations? Leave us a comment below, or let us know on Twitter or Facebook.

This week's Please Explain is all about the National Aeronautics and Space Administration (NASA)! We pull back the curtain on the institution that explores the mysteries of our universe. Dr. Valerie Neal, curator, chair of the Space History Department at the Smithsonian National Air and Space Museum and author of Spaceflight: A Smithsonian Guide and Where Next, Columbus? The Future of Space Exploration, joins us to talk about the inner-workings of NASA and to answer questions from listeners. 

Have questions about NASA? Leave us a comment below, or let us know on Twitter or Facebook.

Science journalist Jennifer Kahn joins us for this week’s Please Explain, which is all about CRISPR, an incredible tool that makes precise gene editing cheaper and easier than ever before. Researchers have used CRISPR to genetically engineer malaria-resistant mosquitoes and manipulate the genes so that they copy-and-paste themselves, making it more likely that the new generation of mosquitoes will also be resistant. Kahn will discuss CRISPR, how it can be used in humans, the ethical questions it presents, gene drives and the recent CRISPR patent decision. 

Have questions about CRISPR and genetic engineering? Leave us a comment below, or let us know on Twitter or Facebook.

Sharon Begley, the senior science writer for STAT, joins us for our latest Please Explain on compulsions to discuss her latest book Can’t Just Stop: An Investigation of Compulsions. She explores the spectrum of compulsions afflicting many people, from checking your smartphone frequently to the people who hoard and exhibit symptoms of OCD. Begley finds that the root of compulsion lies in the areas of the brain that triggers anxiety.

Have questions about compulsions? Leave us a comment below, or let us know on Twitter or Facebook.

Why do we fall in love with one person and not another? Is there such a thing as love at first sight? Today’s Please Explain is all about love and attraction! Dr. Helen Fisher, author, biological anthropologist and chief scientific advisor to Match.com, joins us to discuss romance, dating, and marriage. We'll be taking calls from listeners with questions about love.

Have questions about dating and love? Leave us a comment below, or let us know on Twitter or Facebook.

Helen Fisher will be talking about the anatomy of love, with Jenny Santi, on Tuesday, February 28th at Deepak HomeBase at 888 Broadway. The pre-reception begins at 6:30pm and the discussion begins at 7:00pm. For more information, click here.

Itching to do something that makes a real change, but not sure where to begin? This week's Please Explain with Ami Dar, founder and executive director of Idealist, and Alex Kouts, chief product officer at Countable, is all about social activism. We'll be answering your questions about ways to become politically active, whether that means simply educating yourself on bills, participating in town halls, or contacting your representatives. We'll also be discussing ways to find volunteer opportunities that match your interests, skills, and availability. 

Have questions about social activism and/or volunteering? Send us your questions in a comment below, or let us know on Twitter or Facebook, or leave us a message on Anchor.