You wake up early to the sound of an alarm for class or work on weekdays. But you follow a totally different sleep schedule on the weekends, sleeping in and going to bed later. Does this sound like you? Sounds like almost every college student I know, myself included!

But it turns out that this habit might have some seriously negative effects on your health, beyond just the rude awakening on Monday morning. Scientists call this condition “social jet lag” – the practice of following a different sleep schedule on the weekdays than on the weekends. Essentially, social jet lag means that your body’s clock, or your circadian rhythm, is out of sync with your weekday sleep schedule. Which is why, when you have the chance, you sleep in later on days off. In some cases, it’s the equivalent of changing time zones for the weekend, and switching back on Monday. That’s what led researchers to compare it to jet lag. Read More »

For years, trainers and athletes have said that to build lean, toned muscles, you should lift light weights and do lots of reps. To build big, bulky muscles, you lift heavier weights and do fewer reps. Some studies have called that philosophy into question lately, suggesting that lifting heavy weights doesn’t necessarily make you look like the Hulk.

So is there still a value to the light weight, high rep workout style? A recent study says yes. The study, conducted in the Netherlands, showed that lifting light weights can be just as effective in building muscle tone as lifting heavier weights. What really matters is that you work until the point of exercise-induced fatigue – that means that the last two or three reps should be hard.

This is great news for people who’d like to tone up, but don’t often lift weights. The heavier the weight, the more you risk injuring yourself. With a lighter weight, you can get the same results without the danger. Light weight exercise is also perfect for people who are recovering from injuries, as a way to ease back into exercise.

Doctors say that if you really want to stimulate muscle tone (and save yourself from boredom) the best thing to do is to change your exercise routine up. Alternate between lifting heavier weights and doing fewer reps, and lifting lighter weights and doing more reps. The moral of the story? If you want to get into great shape and have the muscles to show it, you don’t have to grunt and struggle like that obnoxious guy at the gym.

Garnet is a student at Columbia University in New York City. She is “that person” who starts dancing at a party when everyone else is standing around, and if there were a Facebook stalking Olympics, she would be a gold medalist. She also loves cheesy 90s music, and almost died of happiness when Vanilla Ice retweeted her. Once. Follow her on Twitter @garnethenderson.

[Lead image via Yuri Arcurs/Shutterstock]

This year, people all over the country are reporting worse allergy symptoms than ever before. Unfortunately, I’m one of those people. I’ve always had allergies, and they’ve been getting worse for a while. But now they’re baaaad.

Usually, my allergies only bother me in the spring and summer. But this year, they never went away when fall came around. That’s due in large part to the unseasonably warm winter we had this year. The higher-than-normal temperatures meant that flu season came months late, and now it means that pollen counts are sky high. Unfortunately, this might not be a one-time occurrence.

Several recent studies have shown that the Earth’s warming temperature has significantly extended the pollen season. Well, sh*t. Because spring is arriving earlier, pollen is making it into the air sooner, in larger quantities, and staying there for longer. This has lead to huge numbers of people reporting cold and flu symptoms to their doctors, only to find out that they’re experiencing allergies. And scientists are predicting that pollen levels will only continue to rise as the Earth warms. Read More »

Would you work out in a 105 degree room? How about 110? Hot workouts are all the rage in gyms across the country, especially in New York and Los Angeles, where some gyms are adding heat to just about every class.

You’ve probably heard of Bikram yoga, or some of the other hot yoga styles that have been popping up over the past few decades. But now, you can take classes in Pilates, the Bar Method, cycling, martial arts and more — all while roasting in a room that’s 100 degrees or even hotter.

Devotees of these classes love them because they leave every workout dripping with sweat. They see quick weight loss results, and think that all the sweat is helping them detox. But are they really doing that much good? Or are these benefits outweighed by the possible risks of exercising in extreme heat?

Experts have debated the safety of Bikram and other hot yoga styles for years. Bikram is practiced in a 105 degree room, with at least 40 percent humidity. First of all, doing intense exercise at temperatures that high puts you at risk for severe dehydration, or even heat exhaustion and heat stroke. In order to remain properly hydrated during a Bikram class, you would have to drink 4 ounces of water every 15 minutes. However, hardly any students drink that much water during class. Most of the weight loss experienced by people who work out in the heat is just water weight. And that’s not the kind of weight you want to lose. It isn’t uncommon for students to faint during hot yoga classes – I don’t know about you, but that scares me. Read More »

It’s pretty common knowledge that eating too much red meat can lead to health problems, especially heart problems. Even the leanest beef is higher in fat and cholesterol than fish and other meats. But a new study has shown that the health risks associated with eating red meat are even more dramatic than previously thought.

The study followed over 100,000 men and women from 1980 to 2006. They filled out frequent questionnaires about diet and health. Over the course of the study, over 20,000 participants died. Many of them died from cardiovascular disease or cancer, and some died from other causes.

Overall, people who ate more red meat had a higher body mass index, were less physically active, and were more likely to smoke. Even after controlling for these variables, researchers found that each additional serving of red meat a participant ate per day raised their risk of death by 12 percent overall. This included a 16 percent greater risk of dying from cardiovascular problems and a 10 percent greater risk of dying from cancer. Read More »

Unless you’ve been living under a rock lately (which is totally possible, it is midterm season), you’ve heard about all of the controversy surrounding birth control. From Congress to the presidential debates to Twitter to Facebook, everybody is talking about birth control, who should have access to it, and how they should get that access.

That conversation mostly focuses on the birth control pill. Sometimes Nuva Ring and Depo Provera, the monthly shot, are also mentioned. But there’s another form of long-term birth control that’s gaining popularity in the U.S. And when considering your birth control options, it might be worth a look.

The intrauterine device, or IUD, is the most popular form of contraception worldwide. But not in the U.S., where oral contraceptives are the most commonly used form of birth control. Why? In the 70s and 80s, lots of poorly conducted research incorrectly linked IUDs to serious infections. It was also thought that IUDs might affect future fertility, so they were only recommended for women who had already had children and wanted to prevent future pregnancies. But better research has disproved all of these fears, and now IUDs are becoming more popular among young, unmarried, childless women. And they’re blogging about it, too, on sites like IUD Diva. Read More »

When I get stressed, I eat. And it’s not salads I crave. Usually I go for carbs, cheese, greasy foods, salty foods or chocolate. And I’m almost always multitasking while I eat. I’m staring at Facebook or Twitter, watching a TV show on Hulu or checking my email. Is this a good thing? Probably not. But I know I’m not alone.

Lots of people, especially college students, share my not-so-great eating habits. We eat on the go, scarfing down food between classes. We eat at weird hours because our schedules are always changing. And as you can probably guess, this isn’t great from a nutrition standpoint. Eating quickly and allowing emotions to motivate your eating habits leads to overeating and overindulging cravings.

Now, more and more nutritionists are suggesting a practice called mindful eating as a way break these habits. So, what is mindful eating? Although it has only become popular recently, mindful eating is by no means new. The concept is rooted in Buddhist philosophy. It’s almost like a kind of meditation involving food. Read More »

Brown fat – everybody’s talking about it. You’ve probably seen it floating around in the headlines, because it’s been a major part of a lot of the latest health research. But what exactly is it?

Simply put, brown fat is fat that is, well, brown. And it does things that sound almost too good to be true – it actually burns calories. And a new study shows that exercise can convert regular white fat into calorie-burning brown fat. Which means that the more you exercise, the more calories your body will be able to burn at all times. Brown fat is also triggered by cold temperatures. When your body is cold, brown fat starts burning calories to warm you up. And it actually uses white fat from other parts of the body to fuel itself. Read More »

Spandex. Estimates suggest that it is found in 80% of the clothing sold in America. Which means that almost every single American owns at least one piece of clothing that has at some amount of Spandex in it. And apparently, some people think that it’s making us fat.

The stretchy fabric emerged in 1959, and was first used in underwear and workout gear. It rose to popularity during disco mania in the 1970s, and from then on began to be used in more and more clothing. Spandex is unique because it can stretch up to twice its original size, and then snap back into shape. And it’s in everything – check the tags on your clothes and you are sure to find at least some amount of Spandex in the majority of them.

A recent NPR story, part of a series about obesity in America, traces the history of Spandex. The story completely assumes that the rise in popularity of spandex is due to the rise of obesity in America, and repeatedly suggests that spandex may be some kind of an enabler. Back in the 1960s, “fabrics were rigid and people were thin,” but Americans now are looking for clothes to accommodate their expanding waistlines. People who are overweight are able to find clothes that fit them (gasp!), so they are encouraged to remain overweight instead of dieting out of shame. Read More »

It’s getting to that time of the year again. The stress over New Year’s plans, the mad hunt for sparkly dresses and the awkward conversation when you have to ask your aunt for a gift receipt. . In between singing the lyrics to Christmas songs you’ve heard too many times and deciding which sparkly dress is sparklier, it’s quite difficult to squeeze in any workout time. Well, you are just in luck. For the past year and some months, I’ve been bringing you my favorite moves to do in home and on the go.

As you begin to scribble down “go to the gym everyday” on your New Year’s Resolutions list, let me help you with my list of favorite Body Blog workouts of all time – ease into the program and let’s get ready for that summer time bikini body! What? Too early for summer? Okay fine… Read More »