According to new scientific research, the consumption of energy drinks can lead to serious heart problems when dancing or exercising. This is because caffeine within energy drinks affects the heart’s ability to contract and to use oxygen which can lead to everything from irregular heartbeat to sudden death.

Roy Morgan Research has released a new study tracking energy drink consumption in Australia. According to the report's figures, over 1.25 million Australians over the age of 14 now regularly consume energy drinks such as Red Bull, Mother and V. However, some workplace occupations attract a higher consumption rate than others -- and it's not just night shift workers, either.

Diet energy drinks are all the rage right now. From Coke's Red Bull pretender 'Mother' to the Kiwi born-and-bred 'V', most energy drinks now come in sugar-free versions for the fitness set. But do any of them actually taste like the real thing? A caffeine addict investigates...

Red Bull Zero is the latest soft drink manufacturer to jump on the health-and-fitness bandwagon. The familiar-sounding Red Bull Zero promises a "fresh twist" on the taste of regular Red Bull with no carbohydrates, no sugar and fewer calories than the existing sugar-free version.

Your choices for prepaid mobile in Australia just got a little narrower. Red Bull Mobile is no longer signing up new customers and will have exited the market altogether within a year.

Just how 'unlimited' are Australia's unlimited pre-paid mobile phone services? We compare the small print of each telco to see how much phone usage is actually permitted -- along with your chances of getting disconnected from the service if you overstep the mark.

For a mobile phone that is only used very occasionally, a long expiry prepaid deal makes sense. What choices do you have? Planhacker rounds up the offers on the Australian market with 90 days expiry or longer.

One of the key requirements under the new Telecommunications Consumer Protection Code is for mobile phone providers to specify how many 2-minute calls you could make on each plan they offer. That won't be a requirement until March 1 next year, but we can easily perform that calculation ourselves right now.

Prepaid works for casual mobile phone users, but many Australians choose to sign up for a contract plan, either to get better data rates or because they want the cost of their handset subsidised. But which one should you choose? This up-to-date Planhacker listing covers every contract mobile plan (and their month-by-month competitors) available in Australia.