One Minute

Some STDs, if left untreated, can cause infertility or increase your risk of cancer. And you can't always tell if someone has an STD just by appearance. The only way to know whether you have an STD is to get tested. So encourage friends and others to join the trend and get tested today.

1. Don’t pass on a mean message or embarrassing picture of a classmate.
2. Save an anti-gossip pledge to your phone. When you receive a mean message, send that person back the pledge saying that you won’t spread negative words or images.
3. If someone is harassing you by text, save them and show someone who can help.
4. Educate your peers on dating violence by making a short video, public service announcement or meaningful image, and share it via text!
5. Know someone overcoming dating abuse?

Over half of America's pets are overweight. (Yikes.) Take action against pet obesity—follow these tips to keep the animals you know and love healthy.

We got the chance to talk with bullying expert Rosalind Wiseman and she gave us some amazeballs tips on how to handle bullying, whether you're the victim or a bystander.

Everyone can make a difference. Whether it is recycling or cutting showers short, everyone has the power to help put an end to global warming. So what are you waiting for? Here are some ways you can help our planet.

Use Compact Fluorescent Bulbs

Replace light bulbs with compact fluorescent bulbs. By using three CFBs, you will save 300 pounds of carbon dioxide and $60 a year.

Fill the Dishwasher

You don’t have to run your dishwasher every time you eat. By filling it completely, you can save $40 and 100 lbs. of CO2 emission a year.

We know you've got a massive following online. Use your popularity to encourage others to save energy by posting the following tips.

• Change your lights to CFL bulbs.
• Seal or insulate your home with weather-strips.
• Change your AC filters every three months.
• Try to cut your shower time in half this week.

Vampire energy refers to electricity that is drained from the outlet even when electronics are not in use. Follow these simple tips to save energy (and some money on the electric bill).

Unplug After Use

Once-a-day things should be unplugged after they are used.

• electric can-openers
• curling irons
• hair dryers

Unplug Once Charged

So many things run on battery. There's no need to keep it plugged in the wall once you've left the house.

Buy ENERGY STAR appliances—they're certified to use less energy.

ENERGY STAR is the trusted, government-backed symbol for energy efficiency helping us all save money and protect the climate through energy-efficient products and practices. The U.S. Environmental Protection Agency decides which products will earn the symbol.

When you shop for appliances, electronics, home office equipment, lighting, and more, look for the ENERGY STAR symbol to save energy and money.

When your computer is so hot it burns your legs, it's time to let the poor thing take a rest. Turn it off or put it in sleep mode. Either will let it cool down and conserve energy.

You might think you'll be right back when you leave your room with the lights, computer, and fan on, but who knows what kind of distractions are waiting outside your door? If you get sucked into a movie marathon with your sister you could forget all about the energy the lights and other electronics in your room are using. Even if you're positive you'll BRB, flick the switch. It's easy enough to turn back on.