Training at high altitudes vs. Training in extreme heat?

[miniDekkers]

I know people who train at high altitudes get a great advantage in the lungs department. I was wondering if training in the scorching heat had any advantages? I live in an extremely hot part of the world with no altitude at all, I almost always train in the dead heat of day, and when I enter in door gyms or large air conditioned sporting facilities I feel almost like superman due to the change in the air I feel like I can run faster and jump higher, and of course compete at a higher level.

[Van Zandt]

I suppose there might be some increase in range of motion (flexibility) due to muscle tissue extensibility being greater at higher temperatures. It might also facilitate quicker weight loss (sweating more) and mental fortitude (training in discomfort).

[slipthejab]

I know people who train at high altitudes get a great advantage in the lungs department. I was wondering if training in the scorching heat had any advantages? I live in an extremely hot part of the world with no altitude at all, I almost always train in the dead heat of day, and when I enter in door gyms or large air conditioned sporting facilities I feel almost like superman due to the change in the air I feel like I can run faster and jump higher, and of course compete at a higher level.

Where would that be? What are you're average temps and relative humidity?

[Freakminer64]

I never used to do any running, but after coming back from climbing Kilimanjaro, I ended up running my first 10k, two days after arriving back in London, for, as the op said, I felt like "superman", managed to do it in about 45 minutes.
I've also recently started doing Bikram yoga (http://www.hotbikramyoga.co.uk/home.html) and I find that this helps a lot with Cardio. It's basically 25 positions, in 1 and a half hours, in 40-45c heat.