When you're stressed, your body goes into "fight or flight" mode. Here are common reactions:Physical ReactionsIncreased heartbeatFast breathingMuscle tensionSweatingHeadache or stomachacheFatigue or low energyEmotional ReactionsIrritability or mood swingsAnxiety or nervousnessFeeling overwhelmedSadness or frustrationMental ReactionsDifficulty concentratingForgetfulnessRacing thoughtsStress is natural, but too much of it can affect your health. Kaya mahalaga ang pahinga, tamang tulog, at relaxation.