Of course, there are various scientific reasons for this. It is not only a physiological phenomenon but also a somewhat interesting psychological phenomenon.
Our brain is the centre that controls all activities. Not only our desires and
needs, but also our daily activities are recorded in the brain. Every day, the
event that we feel like eating after brushing our teeth is continuously
recorded in the brain.
Since this is a record of many years, the brain realises that
it is time for food after we brush our teeth. This psychological phenomenon
reminds us of a psychological experiment conducted by a psychologist named
Paolo. Paolo would ring a bell in the care of some dogs, and then the dogs
would be given food.
When the dogs were accustomed to this, every time the bell
was rung, the dogs felt like eating. All the nerves in the tongue start working
for food. It is a psychological reason why humans also have the habit of
telling the brain to prepare for food when brushing their teeth.
Similarly, when brushing our teeth, all the nerves in our
tongue start working. Some hormones start being produced in the hypothalamus
area of the brain at that time. These are our physical events, and similarly,
when brushing our teeth, the desire to eat is created due to the secretion of the bile glands.
This is the initial stage of preparing for digestion. Similarly,
when each taste nerve is stimulated, the digestive glands in the stomach and
intestines also start working. These are the events that spontaneously
stimulate our hunger.
Similarly, between six and 10 in the morning, the hormone
cortisol starts to increase in our bodies. This hormone gives us a driving force.
That is, it is the hormone that gives us the motivation to wake up in the
morning, eat, and leave for work early. This hormone stimulates hunger along
with its signals when we brush our teeth.
Similarly, our stomachs start secreting digestive hormones in anticipation of food's arrival. Since this has been our habit for many years, the brain and body have become in tune.
That is why morning hunger occurs after brushing our teeth. Of course, we should eat breakfast; otherwise, the digestive hormones secreted in this way may affect our intestinal tract.