Reference Terms
from Wikipedia, the free encyclopedia
Pregnancy
Pregnancy is the carrying of one or more embryos or fetuses by female mammals, including humans, inside their bodies. In a pregnancy, there can be multiple gestations (for example, in the case of twins, or triplets). Human pregnancy is the most studied of all mammalian pregnancies.
Human pregnancy lasts approximately 9 months between the time of the last menstrual cycle and childbirth (38 weeks from fertilisation). A pregnancy is considered to have reached term between 37 and 43 weeks from the beginning of the last menstruation. Babies born before the 37 week mark are considered premature, while babies born after the 43 week mark are considered post-mature.
Related Stories
1
2
Health & Medicine News
June 9, 2025
June 9, 2025 — A revolutionary STI test developed by UK-based Linear Diagnostics is on track to dramatically reduce the time it takes to detect infections like gonorrhea and chlamydia. Built on ultra-fast EXPAR DNA amplification technology, the platform can ...
June 8, 2025 — Genetic research in Sweden has unveiled three new gene variants that dramatically increase the risk of venous blood clots, sometimes by up to 180%. These discoveries build on existing knowledge of Factor V Leiden and suggest that genetics plays a ...
June 7, 2025 — Cannabis use among older Americans has climbed dramatically, with 7% of adults 65 and older now reporting recent use. This rise isn't just in numbers but also in diversity older users today are more likely to be women, college-educated, and ...
June 7, 2025 — A powerful new discovery reveals that Nup98 a protein once thought to only ferry molecules through the nucleus plays a vital role in safeguarding the most vulnerable areas of DNA. By forming droplet-like 'bubbles' around damaged DNA within dense ...
June 7, 2025 — New research reveals a surprising downside to calorie-cutting diets: a link to higher levels of depressive symptoms, especially in men and those who are overweight. Despite popular beliefs that healthy eating boosts mental wellness, real-life ...
June 6, 2025 — A diabetes drug may soon double as a treatment for liver disease. Dapagliflozin, an SGLT-2 inhibitor typically used for type 2 diabetes, significantly improved liver inflammation and scarring in patients with metabolic dysfunction-associated ...
June 3, 2025 — A new type of mRNA vaccine is more scalable and adaptable to continuously evolving viruses such as SARS-CoV-2 and H5N1, according to a new ...
June 3, 2025 — Using a newly devised, three-dimensional model to study the regeneration of nerve tissue in the nose, researchers have discovered that one type of stem cell thought to be dormant may play a more significant role in preserving the sense of smell than ...
June 2, 2025 — A trial of an interactive game that trains people to alter their brain waves has shown promise as a treatment for nerve pain -- offering hope for a new generation of drug-free ...
June 2, 2025 — Researchers have synthesized a new compound called infuzide that shows activity against resistant strains of ...
June 3, 2025 — To satisfy the seafood needs of billions of people, offering them access to a more biodiverse array of fish creates opportunities to mix-and-match species to obtain better nutrition from smaller ...
June 3, 2025 — A new study found exposure to specific tiny particles in air pollution during pregnancy are associated with increased risk of various negative birth ...
Latest Headlines
updated 12:56 pm ET
June 3, 2025 — Scientists have discovered how pancreatic cancer cells thrive in the lungs or liver, environments that are as distinct to cells as the ocean and desert are to animals. The spread of cancer cells to ...
June 3, 2025 — According to a recent study, in patients with frontotemporal dementia (FTD), epileptic seizures are significantly more common than previously known. ...
June 3, 2025 — Eating a colorful variety of flavonoid-rich foods like tea, berries, dark chocolate, and apples may significantly lower your risk of chronic diseases ...
June 3, 2025 — Researchers asked patients, some of whom had experienced lower back pain for up to 40 years, if being in nature helped them coped better with their ...
June 3, 2025 — The biosynthesis of the great variety of natural plant products has not yet been elucidated for many medically interesting substances. In a new ...
June 3, 2025 — As psychedelics gain traction as potential treatments for mental health disorders, an international study stands to improve the rigor and reliability of clinical ...
June 3, 2025 — A new study shows how person-to-person variation in antibody immunity plays a key role in shaping which influenza (flu) strains dominate in a ...
June 2, 2025 — Researchers have identified a gene that plays a key role in prostate cancer cells that have transitioned to a more aggressive, treatment-resistant form. The gene can be indirectly targeted with an ...
June 2, 2025 — Marijuana use among older adults in the US has reached a new high, with 7 percent of adults aged 65 and over who report using it in the past month, according to a recent ...
June 2, 2025 — Scientists have reported use of antibacterial coatings made from resilin-mimetic proteins to fully block bacteria from attaching to a surface. A protein that gives fleas their bounce has been used to ...