Why do you suddenly wake up at 3 am? Here's the scientific reason The problem of waking up at 3 am is linked to the natural fluctuations of the cortisol hormone , and stress increases it. Many people have trouble waking up suddenly at exactly 3 am or between 3 and 4 am. Some consider it a ghost or an ominous sign, but according to science, it is an important signal related to the body's internal clock and hormones. If you also frequently wake up at 3 am, you should not take it lightly. This may indicate that your sleep cycle is disrupted and stress has increased in the body. The main reason for sleep disturbance at this time of night is the natural fluctuations of the cortisol hormone. Circadian rhythm : Relationship with the body's internal clock There is an automatic 24-hour clock running inside our body, which is called the circadian rhythm, or biological clock. This clock controls when we sleep, when we wake up, when we eat, and when we are energetic. This clock is ...
Things to keep in mind when keeping fish in an aquarium There is a trend of keeping fish in aquariums in homes, offices, hotels and restaurants to make them look attractive. Keeping fish in an aquarium is not only a matter of beauty and decoration, now it has become a means of providing coolness and entertainment to the eyes. Although many people want to keep fish in the aquarium, if they do not find the right method, it is causing disadvantages instead of advantages. Therefore, special attention should be paid to certain things while keeping fish in the aquarium. Choice of water Since fish live in water, the first thing is to know how much and what kind of water to put in the aquarium. After buying the fish, do not immediately put the fish in clean tap water or water in a jar. The water in which the fish are kept should be conditioned a week before. For this, the heater and filter should be kept running during that period. It conditions the water for good bacteria. Then you have to pu...