I was thinking about something the other day when killing myself on the stepmill machine doing intervals at the highest setting. Am I able to push hard at the highest setting because I am in decent shape, or is it just because I am a sicko who can push through pain? Part of me thinks that I am just good at pushing hard even when my body tells me to back off. In the spring and summer I play tennis for hours with a good friend of mine who is the same age and works out year round as well. We are both winded and drenched with sweat within 30 minutes of playing, but push on. Again I ask myself, am I in good shape or do I simply have a high pain tolerance. Let's discuss this topic in more detail. I don't have a concrete answer, but would love to explore this idea with you guys and get your feedback as well.

[Just another cool photo that has nothing to do with the article. I didn't want to show people in pain, plus this photo blends in well with the colors and shades of my site.]

Let's Talk About "Linda" and Her Struggles With Weight Loss
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I talk about different forms of interval training and circuit training on this blog on a regular basis. I tend to shy away from discussing things like lactic acid and oxygen debt, because these are "zone out" terms. Many people tend to skim when blogs begin to read like Biology text-books. I want to explain how intervals work and go into more details, without making this a mind-numbing technical article.

[A skull engulfed in flames smashing a guitar? I have no idea how this fits in with the article ...maybe the burn from lactic acid?]

Why Do We Push, Then Rest A Little, Then Push Hard Again?
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