Grammar Test - Preposition

We all need a little daily stress to motivate us to get up, and to provide the impetus to tackle challenges. But when stressors are psychological and frequent, and not enough time elapses for the body to recover from its stress responses, well-being suffers.
The beauty and scent of roses help you unwind and keep your baseline stress hormone levels low.
Counter stress caused by sleep deprivation with an afternoon nap.
Borage, a known adrenal stimulant, is great for boosting emotional stamina.