Lip is an important visible body part that can help us to hold, suck and swallow food. The muscles of the lips allow us to easily communicate our emotions through facial expressions. It also helps us to play various wind instruments such as flute and saxophone by regulating airflow. The color and size of lips play a crucial role in sexual attraction in both men and women.
Have you noticed why whenever someone sneezes it gives a bad smell? Actually this can be an embarrassing moment but you should be more worried about the health issues related to it. You will be surprised to know that different health issues can cause different odors of the sneeze. Therefore, it is important to identify the odor of the sneeze because some of the health issues can be serious. Why does it smell foul when I sneeze? If your sneeze smell foul, then there are high chances it is caused due to sinus infection. When some amount of mucus
Scolionophobia is the phobia of school. The fear of school might rise due to the fear of leaving home (called agoraphobia) and parents. It is also known as called school phobia, school refusal, or didaskaleinophobia. According to the Anxiety Disorders Association of America, 2-5% of schoolchildren suffer from Scolionophobia. Reasons for Scolionophobia There might be several internal and external reasons that can cause scolionophobia such as A load of school assignments, Bullying by batch mates or senior students, Afraid of a strict teacher, Past bad traumatic experiences, Genetic reasons, Agoraphobia (fear of places or situations that leads to fear of
No, the Carbonation of an alcoholic drink actually increases the rate of alcohol absorption. The carbonated drinks increase the pressure inside the stomach, and small intestine which forces alcohol to get absorbed more quickly in the bloodstreams. This increase in the absorption rate increases the concentration of alcohol quickly in the blood and hence, we feel drunk quickly.
The average number of hairs on a healthy person’s head is 100,000. Based on hair color, this number can vary in the range of 80,000 to 150,000. There are typically 100,000 hair follicles on the human head which are small pouches in our head scalp through which hair grows. The distribution of hairs also varies with the part of the head. For example, the hair density (number of hairs per centimeter square) at the part in the hair is about 300-320, while the hair density at the back of the head and forehead is 200-240.
Cheek dimples are caused by the movement of the skin muscles over the double or bifid zygomaticus major muscle. A person with dimples has two separate bundles of zygomaticus major muscles, one bundle connecting the zygomatic bone to the corner of the mouth while the other one connected below the mouth corner. This splitting of zygomaticus major muscle into two bundles is known as double or bifid zygomaticus major muscle. This bifid zygomaticus major muscle is responsible for the formation of dimples.
The Human Genome Project was started to accurately sequence 3 billion euchromatic human genome DNA base pairs within a period of 15 years The human genome project was a 13 year long, international scientific research launched in 1990 with an objective of determining the sequence of the 3 billion DNA base pairs that make up the entire human genome. It is still the world’s largest collaborative project in the field of biological research. This project involved 20 universities and research centers from countries such as United States, United Kingdom, France, Japan, China, and Germany. Goals of the human genome
Yes, curly hair is considered a dominant trait. The curly hair of a person is determined by the gene of his/her parents instead of the external environment. The curly hair gene is dominant while the straight hair gene is recessive. Therefore, if one of the parents has a curly hair gene, then it is more likely that the child will also have curly hair. It is found that external factors such as climate conditions and geographical locations are responsible for the evolution of human hair and straight hair is its new trait.
Muscle functions mainly in two modes the ‘fight or flight’ (sympathetic), and ‘rest and digest’ (parasympathetic) which are controlled by the nervous system. Whenever we stretch, parasympathetic mode gets triggered and we feel relaxed and calm. On stretching, endorphins are released by our pituitary gland and we experience the analgesic effect. During sleep, our muscles get contracted due to which muscle cells also shrink but while stretching the blood circulation improves and the muscles release unnecessary tension caused due to contraction, and thus, we feel so good.
Hearing is the fastest human sense. We know that the speed of light is greater than the speed of sound but when it comes to senses, it involves detection, transmission, and processing of the signal. Our ear is capable of receipting and recognizing sounds in just 0.05 seconds which is faster than any other sense such as touch and sight takes about 0.2 seconds. The direct vibrations of the hairs on the receptor cells caused by sound waves instantaneously result in nerve firing and sending a signal to the brain.