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Why Does My Boyfriend Wake Up Angry (9 Reasons)

Why Does My Boyfriend Wake Up Angry

Anger is a strong emotion; if not controlled, it can cause irreparable damage to a relationship.

Many women ask me that their partner wakes up angry for no reason. It is frustrating when your partner is in a bad mood without apparent reason.

Dealing with anger among partners requires patience and wisdom. However, a little carefulness during critical times can pay for the rest of your life. In this article, I will share causes for waking up angry and how to deal with them. 

Why does my boyfriend wake up angry

Your boyfriend waking up angry could be due to low blood sugar levels. Another reason might be a disturbance in the natural sleep-wake cycle. Its treatment includes medication, maintaining a healthy diet, and following a natural sleep cycle. 

Reasons your boyfriend wakes up angry

1. Sleep deprivation

One of the reasons your boyfriend is angry in the morning could be sleep deprivation.

If your boyfriend is not having enough sleep or quality sleep, he may undergo sleep deprivation. Experts recommend at least 7 hours of sleep to an average adult. And the quality of sleep can be affected by an uncomfortable environment such as noisy, too hot, too cold, etc.


  • Go to bed early
  • Discontinue screen interaction at least one hour before bed
  • Maintain a comfortable environment where you sleep. Turn off lights, avoid any noise, and keep an optimal temperature to quality sleep.

2. Poor diet may affect sleep

When dealing with your guy’s angry mood in the morning, look for his diet. Poor diet and inadequate nutrition consumption lead to sleep problems which affect a person’s mood. 

A study suggests that inadequate nutrients such as calcium, magnesium, and Vitamins A, C, D, E, and K are linked with sleep problems.

Your boyfriend is unable to enjoy his sleep, which might cause irregularities in his hormonal changes leading to a bad mood.


  • Include adequate fiber intake in the diet
  • Avoid junk food as a substitute for a meal
  • Make your boyfriend consume more vitamins and nutrients

3. Wrong sleep routine

One of the common causes of a bad mood in the morning is an unnatural sleeping routine. Our body has a biological clock that tells the body when to sleep. Following the natural clock, our brain releases melatonin, a hormone that makes us sleepy at night. 

When a person disrupts the natural sleep-wake cycle, it causes irregularities in the hormonal release. 

Your boyfriend might be sleepy during the day and active at night, which may affect his mood.


  • The night is the best time to sleep; make a habit of sleeping at night
  • Rise early in the morning
  • It may take time to form a new routine. Stay consistent with it.

4. Lack of physical activity 

Physical activity is the best treatment for bad moods and anxiety. With exercise, our body releases endorphin, a hormone, which boosts mood, increases focus, regulates sleep patterns, and gives confidence.

If your boyfriend’s routine is empty of exercise, it might be the reason that he has mood swings or anger in the morning.

Exercise will help your boyfriend focus on his body, and his brain will become sharper and function properly. 


  • Do exercise
  • Even a mild physical activity will dramatically improve your boyfriend’s mood.
  • Take part in sports activities

5. Skipping breakfast may cause morning anger

When dealing with your guy’s morning anger, you may have noticed him skipping breakfast several times a week. 

If your boyfriend skips breakfast, his blood sugar levels may drop, causing him to be less productive and angry. Hunger leads to anger, and if both combined, we have a “hanger,” a term used for people who become angry because of hunger.


  • Make your boyfriend always have breakfast.
  • Avoid refined carbohydrates such as in cereals and muffins in the morning. They cause blood sugar levels to fluctuate sharply.
  • Eat proteins from eggs, yogurt, avocado, butter, toast, etc.

6. Prolonged alcohol consumption

One of the reasons your boyfriend wakes up angry might be because his liver is under stress. Prolonged alcohol consumption damages the liver, hurting its ability to detoxify the body.

Research suggests that alcohol consumption in adolescents is linked to depression.


  • Avoid alcohol consumption
  • Consult your doctor if you are unable to control your drinking habit
  • Begin slow, have alcohol free days

7. Mental stress

Another reason for your boyfriend waking up angry might be stress. Study shows that psychological stress causes anger issues and depression.

Stress may emerge from mental pressure, continuous anxiety, or seeking something unattainable.


  • Choose some relaxation techniques that reduce stress level
  • Communicating with your partner can help him curb anger

8. Longer screen time

Study shows that longer screen time, especially at night, may cause sleep deprivation related to depression.

When you see a mobile screen at night time, the radiation striking your eyes will confuse your brain if it is daytime or not. Also, social media is an excellent platform to connect, but it can’t be the alternative to physical connection. The intimation and closeness a human requires can’t be quenched through social media. Therefore, it leads to stress and depression.


  • Read a book before bed instead of using smartphones
  • Take time to spend with family, kids, and friends.
  • Limit your screen time

9. Intake of caffeine before bed

If your boyfriend takes caffeine before bedtime, it will affect his sleep. Taking caffeine 3 to 7 hours before bed makes it harder to sleep. When your guy is sleep-deprived, he will undergo depression and anxiety. 


  • Take caffeine early in the day
  • Avoid caffeinated drinks because they have a more significant portion of caffeine

What is morning depression?

Morning depression is a disorder in which you feel depression, anxiety, and anger in the morning. A study showed that people who do not follow their natural sleep-wake cycle had more chances to have morning depression.

Our body has an internal biological clock that runs 24-hours and stimulates our body to feel sleepier at night while active in the daytime. This natural body clock is responsible for regulating our heart rate, energy, thinking, and mood.

A disruption in our natural body clock may cause our body to release hormones at daytime that were meant to be released at night, such as melatonin. As a result, it will make us tired and sleepier in the day.

Final Thoughts

Waking up in a bad mood is related to sleep deprivation and a poor diet. A person with lower blood sugar levels shall experience a bad mood and anger in the morning. Sleep deprivation stems from disturbing natural sleep-wake cycles, stress, prolonged alcohol consumption, and lack of physical activities.