Manipulate the length of both Bezier handles at the same time

Is there no way to manipulate the length of both Bezier handles at the same time?
This guy shows a heart shape being created, but it is messy and uneven. If he had the opportunity to manipulate the length of the handless in both direction at once, it would be a better result and he would accomplish the result faster:

Only when you hold ‘alt’ and re-pull out from the point will the handles stay the same length.