Our expert says:
Definitely, yes. Anything you do over and above nothing is good for you. Will it meet your goals? Well, that depends on your goals! But to do those 30 minutes is what would be recommended and it will have very clear health benefits, and I can only encourage you to do it. In time, with fitness, you'll be able to increase the time and speed, but don't get ahead of yourself yet! Just keep doing what you are, build your fitness, and let your body tell you when to increase the time or speed!
As for a heart rate monitor, at this stage, I don't think it's really necessary. If you have it already, then sure, it is always good to measure and learn about your body and how it is going. But I wouldn't invest just yet, get fit first and then cross that bridge later!
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