1. effects
   "Stress can have many effects on our physical health."

2. high
   "It can affect the heart such as increasing the pulse rate, making the heart miss beats, or causing high blood pressure."

3. negatively
   "Emotions are also negatively affected by stress."

4. under
   "When people are under stress, they often overreact to little problems."

5. Feeling
   "Feeling nervous, it is obvious that stress has a great influence on the health and."

So the complete passage reads:

"Stress can have many effects on our physical health. It can affect the heart such as increasing the pulse rate, making the heart miss beats, or causing high blood pressure. Stress can also affect the breathing system. It can make a person breathe too fast, resulting in a loss of carbon dioxide. Emotions are also negatively affected by stress. Stressful people often feel anxious. They may have panic attacks or feel tired all the time. When people are under stress, they often overreact to little problems. For example, a normally gentle parent under a lot of stress at work may shout at his/her child for dropping a glass of juice. Stress can make people angry. Feeling nervous, it is obvious that stress has a great influence on the health and."