How acidic are your favourite drinks?

We're usually too wrapped in in calories to consider another important factor to what we're drinking -- the acidity. Acidic drinks can not only lead to ulcers, but they can rot your teeth too. Fitsugar has a handy breakdown of the worst offenders acid-wise. What are the some of the worst offenders?

• Coke, with a pH of 2.63
• Pepsi at 2.49
• Gatorade at 2.95
• Doctor Pepper at 2.95
• Minute Maid at 2.8

For comparisons sake, consider this: Neutral pH (water) is 7.0. Battery Acid is 1.0 and you mouth's normal pH should be about 6.2-7.0. So if you haven't quit drinking soda for the sake of your health, maybe you should consider giving it up for the sake of your pearly whites?

Carbonated water: Good or evil?

Have you ever wondered if carbonated water was bad for your health? I've heard both sides, that it's good for dieting because it can help you feel fuller, and that it might have negative side-effects due to acidity and lack of fluoride. So is it or isn't it a bad idea? Honestly, there haven't been enough studies looking at just water (as opposed to other carbonated beverages) to really know for sure, but experts say that all arrows point to a very small risk, if any, for negative health effects. A bigger risk? Not drinking enough water of any kind, period.

The anatomy of a fainting spell

Do people still faint anymore? I don't think I've ever seen anyone faint in person, although I know it happens. Based on TV and movies it seems like people faint left and right, but have you ever wondered what exactly causes somebody to suddenly lose consciousness and hit the floor?

Fainting is caused by a sudden decrease in blood flow to the brain, which causes loss of consciousness usually just for a few seconds, and people often feel dizzy or nauseous after they wake up. Things that can trigger fainting include any kind of straining or pushing, excessive coughing, medications, drugs, low blood sugar, pain, and of course the Hollywood favorite: emotional distress.

Lindsay Lohan's Luxurious Utah Rehab

ET Online is reporting that Lindsay Lohan has entered rehab for the third time and this time the young starlet has not chosen Promises or any of the other Southern California rehabs. Instead, she is at the rustic Cirque Lodge drug and alcohol rehab in Sundance, Utah. The Cirque Lodge sounds more like some of the estates we have covered than a rehab. The Lodge has a log cabin look and can accommodate 16 residents. Rooms have access to a private bath including a Jacuzzi tub and shower and the bedrooms have fireplaces and views. The main room is a two-story great room with two fireplaces. There is also an exercise room, a media room, a cedar sauna and a circular meditation room on the third floor which is ideal for quiet contemplation. It is reported that Mary-Kate Olsen and David Hasselhoff have both spent time at Cirque and the rehab can cost upwards of $30,000.

How buses, lithium ion batteries are made

How It's Made is a great show on Discovery's Science Channel. This segment takes a look at the making of a city bus. You might be familiar with a regular car assembly line but making a bus is a little different. The part I found most interesting is the installation of air tanks. That strange sound you hear when a bus door opens is actually compressed air being released.

In this segment, How It's Made takes a look at the production of a lithium battery for an electric car. The coolest part of that video is the spraying on of molten metal. The electric car in the video looks like Th!nk's but I might be wrong. How It's Made has also taken taken a look at the making asphalt, which is made from oil. Many people know gas is made from oil but are surprised to learn things like plastics and asphalt are made from oil as well.

Fan Pulls Off Tim McGraw’s Ring

The crowd at Tim McGraw’s concert in Louisiana last Saturday really couldn’t keep their hands off the country singer.

This time, they grabbed his jewelry. In a second video from the Cajundome show now circulating online, McGraw is seen moving along a row of fans during the show, reaching out to touch them, when one of them pulls a ring off his left hand.

Usher Marries Tameka Foster in Private Ceremony

After abruptly canceling his Hamptons wedding to stylist Tameka Foster last Saturday, Usher became a married man Friday in Atlanta, a source confirms.

The two reportedly exchanged vows in the office of his lawyer – a far different affair than the event planned for last weekend at music mogul L.A. Reid’s Sagaponack, N.Y., home. The couple had spent $10,000 on invitations alone, and had lined up singer Robin Thicke to perform and renowned chef Jean-Georges Vongerichten, along with Sylvia’s of Harlem, to cook.