The tx heat hasn't killed me yet but I'm pretty sure I drop a few IQ points every summer due to brain cells boiling off. Luckily I can replenish them by taking skinny skis on snowy trips during the winter.
You need an anti-parka. They're hard to find, but the fact their inner-liner consists of melt-resistant ice makes them all but essential for the Texan summer.
Or you could become a reptile and live in a hole. Cheaper, but then you are in a hole in Texas, so......