Repeating anything over and over might not be the best way to master that task. If you practice a slightly different version, you will learn more and faster. For example, if you want to master a new presentation:

• Rehearse the basic skill. 
• Wait at ...

When you sleep, most of the consolidation process occurs.

In contrast, sleep deprivation can affect your ability to commit new data to memory and consolidate any short-term memories.

Interleaving - studying related concepts or skills in parallel - improves your brain's ability to differentiate between concepts or skills. It helps you to really learn and gain an understanding at a deeper level.

Instead of focusing on one subject during a learning session, learn several s...

Regularly testing yourself will speed up learning. When you test yourself and answer incorrectly, you are more likely to recall the right answer after you look it up. You will also remember that you didn't remember.

Research shows that those who teach, speed up their learning and remember more.

Even just preparing to teach means that you will seek out key points and organize information into a coherent structure. 

According to research, regular exercise can improve memory recall.

Exercise also increases a protein (BDNF - brain-derived neurotrophic factor) that supports the function, growth, and survival of brain cells.

Most of us can type very fast, but research shows writing your notes by hand will allow you to learn more.

Taking notes by hand enhances both comprehension and retention.

When you have to learn something new, try to associate it with something you are already familiar with. Then you only have to learn where it differs. You'll also be able to apply greater context, which will help with memory storage and retrieval.