Can you get sick from eating food that was left out overnight?

Time: Around two hours
Yogurt and other dairy products can be left to sit for two hours before bacteria begin to grow, making them potentially unsafe to eat before long. This process is accelerated at temperatures over 90 degrees (read: keep your Yoplait out of the sun), or in yogurts with added fruit and sugars, as most milk-based products (with the exception of butter) are quick to spoil and taste better cold, anyway.