Many ways to pump it up naturally. You know that your testosterone is high enough when you kiss a girl for 2 minutes or so and she starts grabbing your cock. You'll know it's low when she LJBFs you after the makeout.
Aside from HIIT on strength and cardio (squats are great), here are some natural ways:
1. Interact with the sexiest and most beautiful girls you see everyday.
2. Listen to heavy metal music at least 30 minutes each day. Stay away from love songs whenever you can.
3. Watch some Kyokushin, Russian Kudo or Buakaw fights and after watching, hit a heavy bag as fast and as hard as you can for 3 minutes and then rest 1 minute. When you're starting, 3 rounds is good. Eventually, you'll need to up the ante to 10 to 15 rounds. Do this before you hangout with girls. You'll notice the very big difference.
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http://www.youtube.com/watch?v=GhcuYjLiZos[/youtube]
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