Does caffeine affect cortisol level?
Caffeine increases cortisol secretion in people at rest or undergoing mental stress. It is not known whether tolerance develops in this response with daily intake of caffeine in the diet.
Caffeine has different effects on cortisol levels depending on whether they are acute or chronic. After four weeks, regular caffeine consumption has no effect on cortisol levels ( Lovallo et al. 2005 ). Caffeinated coffee reduces cortisol secretion in healthy people in the short term ( Gavrieli et al.
Some studies show that caffeine may increase cortisol levels in some people. Since researchers have also found a link between high cortisol levels and abdominal weight gain, you may want to limit how much caffeine you consume if you are already prone to stress.
In effect, caffeine replaces the boost we would ordinarily get from cortisol rather than supplementing it. Three times throughout the day—in the early morning, around mid-day, and in the evening–cortisol levels rise. The chart below, plucked from a 2009 study, shows the ebbs and flows.
Another reason why it has been suggested that you should delay your morning coffee is that the caffeine from coffee can increase cortisol levels. Drinking coffee when your cortisol level is at its peak may further increase levels of this hormone.
Cortisol responses to caffeine are reduced, but not eliminated, in healthy young men and women who consume caffeine on a daily basis.
Eliminate or reduce caffeine.
Cortisol can remain elevated for up to 18 hours in the blood. This is the best step to immediately decrease your catabolic metabolism and increase your anabolic metabolism. If you're a habitual coffee drinker, reducing your daily intake is easier than you think.
You could lose weight
Alternatively, cutting out your favorite sugar-packed caffeine drink completely could trim hundreds of calories from your diet in a single day. Here are some signs you're drinking too much coffee.
Since abdominal fat also tends to increase cortisol levels, this can lead to a vicious and unhealthy cycle, especially in women. There is little doubt that increased stress and/or cortisol can cause increased abdominal fat and weight gain.
To break the cycle of cortisol weight gain, take steps to reduce your stress, keep an eye on your caffeine and exercise levels, and make sure you're meeting your sleep need and living in sync with your circadian rhythm.
What does high cortisol feel like?
Cortisol gets a bad rap. As the body's primary stress hormone, cortisol surges when we perceive danger, and causes all the symptoms we associate with “fight or flight”—increased blood pressure and heart rate, muscle tension, and the digestive system slamming to a halt, resulting in nausea, vomiting, and diarrhea.
In most people, cortisol levels are highest in the morning when they wake up and lowest around midnight. Your body also pumps out excess cortisol when you're anxious or under intense stress, which can affect your health if the levels stay too high for too long.

Numerous studies show that music can relax you, especially before a stressful event, by significantly lowering stress hormones. It can also reduce the spike in cortisol during the stressful situation (50-54).
- Get the right amount of sleep. Prioritizing your sleep may be an effective way to reduce cortisol levels. ...
- Exercise, but not too much. ...
- Learn to recognize stressful thinking. ...
- Breathe. ...
- Have fun and laugh. ...
- Maintain healthy relationships. ...
- Take care of a pet. ...
- Be your best self.
An unhealthy diet filled with added sugars and processed foods will raise cortisol levels and put you at a greater risk for high blood pressure and diabetes.
- Lowering stress. Stress is a trigger for cortisol production, so lowering stress also lowers cortisol in many cases. ...
- Trying relaxation techniques. ...
- Eating a balanced diet. ...
- Avoiding caffeine. ...
- Getting enough sleep. ...
- Maintaining a good bedtime routine. ...
- Taking up a hobby. ...
- Laughing and having fun.
By waiting for about 30 to 60 minutes, you allow your cortisol levels to naturally start decreasing. Drinking coffee too soon after waking up, when cortisol levels are already elevated, may reduce the desired stimulating effects of caffeine.
You can reduce high cortisol levels quickly and naturally by: lowering your stress levels, implementing a relaxing bedtime routine, improving your diet (supplements may help), and improving your sleep hygiene. The RISE app can help you break the cycle of high sleep debt and high cortisol levels.
The mental benefits of aerobic exercise have a neurochemical basis. Exercise reduces levels of the body's stress hormones, such as adrenaline and cortisol. It also stimulates the production of endorphins, chemicals in the brain that are the body's natural painkillers and mood elevators.
For most people, caffeine withdrawal symptoms can last two to nine days and you should be feeling fine again no more than two weeks after you stopped using caffeine.
Is it worth cutting out caffeine?
Caffeine is a stimulant that can interfere with sleep, so cutting it out of your diet may help you get the rest you need. There are other benefits to quitting caffeine as well, including improved mental health and decreased anxiety.
Studies have shown that quitting coffee helps you lower anxiety (which can cause stress eating) and even help lower cortisol in the body (which tells your body to store belly fat) and other studies show it can help lower blood pressure several points.
The first body type is the ADRENAL and the adrenal belly, which is caused by increased levels of cortisol. When going through stressful periods, the production of cortisol increases, and this, in turn, increases the accumulation of fat around the waist, leading to a saggy abdomen.
Common signs and symptoms of higher-than-normal cortisol levels include: Weight gain, especially in your face and abdomen. Fatty deposits between your shoulder blades. Wide, purple stretch marks on your abdomen (belly).
Cortisol Can Lead to Weight Gain
This means you're more likely to indulge in french fries and a milkshake than you are a well-balanced meal. An excess of cortisol also can lead your body to produce less testosterone. This may cause a decrease in muscle mass, as well as slow down how many calories your body burns.
The hormone leptin is produced by fat cells and is secreted into our bloodstream. Leptin reduces a person's appetite by acting on specific centres of their brain to reduce their urge to eat. It also seems to control how the body manages its store of body fat.
- Ashwagandha. Ashwagandha is what's known as an “adaptogen” – a substance believed to help the body respond to various stressors. ...
- Probiotics. ...
- Prebiotics. ...
- Fish oil. ...
- Bacopa. ...
- Ginkgo biloba. ...
- Rhodiola. ...
- Maca.
Several home cortisol tests are available to purchase over the counter or online. These allow a person to take a blood, urine, or saliva sample before sending it off for analysis.
A cortisol test often uses a sample of blood drawn at a lab. But the test may also be done on urine or saliva collected at home. Normally, cortisol levels vary during the day, so your provider may order more than one type of test to get more information about your cortisol levels.
Cortisol is released in response to fear or stress by the adrenal glands as part of the fight-or-flight mechanism. This causes heightened levels of breathing and an increased heart rate. These short-term bursts of cortisol are necessary to help us recover from the effects of stress.
What are signs of cortisol issues?
- weight gain, mostly around the midsection and upper back.
- weight gain and rounding of the face.
- acne.
- thinning skin.
- easy bruising.
- flushed face.
- slowed healing.
- muscle weakness.
The best time to drink coffee is after 9:30 a.m., when cortisol levels are lower. That way, you'll get the focus you're looking for without the jitters or anxiety. The one exception, Maucere says, is if you wake up later than 9:30 a.m. regularly.
While this timeframe can vary depending on your sleep schedule, the most common cortisol dip times tend to be between 9:30 and 11:00 am, then again between 2:00 and 5:00 pm. This translates to a 1-4 hour waiting window before enjoying your caffeinated brew after waking.