All articles tagged with #muscles
A new study of the coelacanth fish revealed that many muscles previously thought to be present were actually ligaments, challenging long-held beliefs about its anatomy and evolution, and showing it is more similar to sharks and tetrapods than to ray-finned fish.
Robert Irwin shared a video on Instagram warning gym-goers to check under their weights for spiders, but fans were more distracted by his muscular arms. The video featured Irwin finding a huntsman spider under a weight and humorously addressing it. While some fans reacted to the spider, many commented on Irwin's impressive physique, calling him "jacked" and "yolked." Irwin has been receiving a lot of attention for his appearance, even being dubbed the "World's Most Eligible Bachelor."
Vitamin D deficiency can lead to various physical and mental symptoms, including constant fatigue, pale skin, disruptions in appetite and sleep patterns, muscle weakness, persistent body pain, compromised immune system, and diminished appetite. It is important to ensure adequate intake of Vitamin D through diet and sunlight exposure to maintain overall well-being.
Diabetes can have a significant impact on various tissues and organs in the body, leading to a range of health problems. It can cause external issues such as skin changes, hair loss, and eye troubles, as well as internal problems like weakened immune system, heart attacks, kidney failures, and non-alcoholic fatty liver disease. Diabetes can also adversely affect bone health, leading to osteoarthritis, reduced bone density, and joint problems. Men with diabetes may experience sexual health disorders like erectile dysfunction and premature ejaculation. Additionally, weak muscles and fragile bones are common consequences of diabetes, affecting mobility and increasing the risk of fractures. Managing diabetes comprehensively through regular monitoring, a balanced diet, physical activity, and medication is crucial to prevent complications and enhance overall well-being.
The number of muscles in the human body is not definitive, with estimates ranging from around 600 to as many as 840 due to different ways of categorizing muscles. The smallest muscle is the stapedius muscle in the middle ear, while the largest is the gluteus maximus. There are three main types of muscles: skeletal, smooth, and cardiac. Taking care of muscles involves proper exercise, including aerobic and resistance training, as well as stretching to maintain flexibility. Staying active is important for muscle health and function.
The gluteus maximus is the largest muscle in the body by mass, accounting for about 12% to 13% of the total weight of all leg muscles. It is responsible for extending the thigh at the hip joint and is critical for activities like walking up stairs and running. On the other hand, the latissimus dorsi, commonly known as the "lats," is the largest muscle in terms of surface area. It measures about 7 inches in width and 14 inches in length. In contrast, the stapedius muscle, measuring only 0.2 inches in length, is the smallest skeletal muscle in the human body and plays a crucial role in dampening sound vibrations in the middle ear.
Zac Efron flaunted his toned muscles while aboard a yacht in St. Tropez, showing off his chiseled biceps and six-pack abs. The actor, who is either extra ripped for an upcoming role or maintaining his physique from a previous film, enjoyed a day on the water, riding a jet ski and cooling down with a shower. Efron will be starring as Kevin Von Erich in the upcoming film "The Iron Claw," based on the true story of the Von Erich wrestling family. He also addressed plastic surgery rumors, denying any alterations to his face and revealing that a previous jaw injury almost killed him.
Researchers at Cambridge University have used digital muscle maps to recreate the muscular anatomy of Lucy, the famous Australopithecus afarensis fossil. The end result indicated that Lucy was powerfully built, with 36 muscles in each leg, and her knee extensor muscles were comparable to those of modern humans. However, it's unlikely that Lucy walked exclusively on two legs, as Australopiths are thought to have thrived both on the ground and in trees.
Researchers have used the fossil of an early human ancestor named Lucy to recreate her muscles and determine how she moved 3.2 million years ago. The study, published in the journal Royal Society Open Science, found that Lucy's leg muscles were much larger than those of modern humans, enabling her to move freely between different environments. The 3D model also showed that Lucy could stand and walk as efficiently as modern humans, despite having a more platelike pelvis and shorter legs. Studying fossils of Australopithecus afarensis can provide insight into the evolution of bipedalism and when it emerged in early human ancestors.
Ryan Reynolds shared a photo on his Instagram Story, taken by his wife Blake Lively, showing off his bulging biceps as he prepares for Deadpool 3. Blake later re-shared the photo on her own Instagram Story with "spicy" and "hot" emojis.