#22: Heatstroke is a worry with it getting hotter so should we wear masks?

It’s been getting hotter and hotter! Throw humidity into the mix and it’s just hard to breathe, period.

しんぱい
心配
a worry

なる is ‘to become.’
When attached to an い-adjective, the last い in the adjective changes to く. This means the original adjective is 暑い => ‘hot.’
When the particle と follows the plain/casual/dictionary form of a verb, the phrase it marks is conditional.
So, I can just as easily say, “If it gets hotter, . . .”
The use of と means that the possibility of 熱中症 is real: if this happens, this other thing will happen.

The space after 心配 separates the front half as the reason for the back half.
Spaces in Japanese are often used for emphasis.
In this sentence, で was replaced by the space.
で means ‘and’ when used to connect two separate sentences where the last word of the first sentence is です.
Sometimes those sentences don’t directly affect each other but if the first half is the reason for the second half then で acts like ‘because’, ‘since’ or ‘due to’ as it does in this sentence.

〜ほうがいい is a set phrase that means “it’s better ~” or “you should ~”.
ほう literally means “way” so you can think of it as leaning one way or the other.
All together, it’s the good way to lean => the better way to go.
When you put a verb before this phrase it has to be in past tense plain/casual form even though you’re talking about the present.

Many items that you put on with つける can also be used with する to mean the same thing.
する is slightly more casual and only spoken.