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Starting on December 6, all air passengers traveling to the United States must show a negative COVID-19 test from within one day of departure before boarding their flight. Key Takeaways All individuals aged 2 and older must show proof of a negative COVID-19 test prior to boarding a plane to the U.S.The CDC now requires travelers to take the test within a day of departure, rather than within three days, as was previously allowed....

Acne is caused by several different factors all coming together to create one annoying skin problem. So, it only makes sense that the best treatment plan will address each of those factors. Combination acne medications are one way to help you do just that. What Are Combination Acne Medications? Combination acne medications are prescription treatments that combine two acne-fighting ingredients. For example, you can get benzoyl peroxide and a topical antibiotic in one medication or tretinoin and an antibiotic....

In medical circles, the term “lymph node cancer” is not generally used, as it runs the risk of being misinterpreted and causing confusion. That said, lymph nodes are often key structures in the growth, spread, and detection of many different kinds of cancer. Lymph Nodes Filter Lymph Each of us has hundreds of lymph nodes, and each lymph node filters the fluid it receives from lymph vessels that collect or drain lymph fluid from a particular zone in the body....

When summer rolls around, and you find some sunscreen that you still have from last year, you might wonder: Wait, does sunscreen expire? And if it has expired, does that mean you can’t use it anymore? These are excellent questions to ask, and yes, it matters. Read on to find out more information about sunscreen, expiration dates and what to look for, and why it matters if sunscreen has expired or not....

Gerota’s fascia, otherwise known as renal fascia, is collagen-filled, fibrous connective tissue that encapsulates the kidneys and adrenal glands. Gerota’s fascia separates perinephric fat from paranephric fat—the fat in the front and back of the kidney. Identifying Gerota’s fascia is particularly important when it comes to radiographic testing such as ultrasounds and CT scans for finding abdominal masses, including kidney stones, abscesses (pockets of pus in the kidney that can often result from a UTI), or tumors....

Vaginal discharge, made up of cells, bacteria, and fluids from the vagina and cervix, is normal for people with vaginas. Discharge helps ward off infection and lubricate the vagina. Typically, discharge is clear or white, thick, and does not smell. Its production is triggered by estrogen in the body. The consistency, amount, color, and smell of discharge changes throughout the menstrual cycle for a number of reasons, including pregnancy, use of birth control, and menopause....

When certain muscles in the digestive and urinary tracts contract, it is called peristalsis. Peristalsis is a particular, wave-like kind of muscle contraction because its purpose is to move solids or liquids along within the tube-like structures of the digestive and urinary tracts. Peristalsis is not a voluntary muscle movement, so it’s not something people can control consciously. Rather, the smooth muscles involved in peristalsis operate when they are stimulated to do so....

Although the U.S. government has not issued a federal digital COVID-19 vaccine pass, a verifiable digital proof of vaccination has emerged anyway and slowly gained momentum over the past few months. Key Takeaways The SMART Health Card, a technology that allows Americans to keep a copy of their COVID vaccine and testing information as a QR code, is now in use in more than 20 states.The QR code technology of the SMART Health Cards makes health information easier to verify and harder to forge....

Hemophilia B is the second most common type of hemophilia, a rare genetic blood-clotting disorder that can result in episodes of excessive bleeding. Hemophilia B can be treated with synthetic or plasma-derived replacements for factor IX, a blood-clotting protein that people with this condition are lacking. Other mainstays of therapy are avoiding injury and promptly treating the bleeding episodes that do occur. Serious bleeding complications may require specific intervention to reduce the risk of harmful effects to your health, such as bleeding into the joints, which can lead to arthritis....

According to a National Highway Traffic Safety Administration study, drowsy driving was responsible for 72,000 crashes, 44,000 injuries and 800 deaths in 2013. Other research claims these figures are actually underestimated and suggests that up to 6,000 fatal crashes are caused by drowsy driving occur each year. A lack of sleep can seriously affect your reaction time, judgment, and ability to concentrate, which can be especially dangerous if you are driving....

Living with a food allergy, or more than one may place you at risk for certain nutrient deficiencies and may make you wonder whether you need a multivitamin. Avoiding whole food groups such as dairy or grains (due to a wheat allergy) automatically deprives your diet of potential nutrients. For example, a milk allergy may eliminate a significant source of calcium and vitamin D, which are critical nutrients for bone health and overall health....

The internal condom—also called “female” condoms—has several advantages over the external condom. First of all, it is controlled by the person with a vagina. So even if the partner with a penis (insertive) is reluctant to use external condoms, it affords the partner with a vagina (receptive) greater control over their sexual health and reproductive choices. But there are other benefits of internal condoms that may make them attractive for both partners....

Constipation is a common symptom for people with an underactive thyroid, a condition called hypothyroidism. Hypothyroidism slows down many of your body’s systems, including digestion and elimination. Some people can end up being chronically constipated as a result of their disease. This article will explore whether constipation could be a symptom of hypothyroidism, other potential causes of constipation, and treatment options. What Is Constipation? Constipation is defined as having fewer than three bowel movements in a week....

Preparation for a hysterectomy starts as soon as you schedule your surgery date. Your healthcare provider may recommend pre-operative lifestyle changes, like exercise and smoking cessation, in order to get your body as healthy and as ready for surgery as possible. Then, as your surgery date gets closer, you will receive specific instructions pertaining to the day of your hysterectomy, like what medications to take or skip, what to wear and pack, and when to stop eating....

COPD is an obstructive lung disease characterized by airflow limitation that is not fully reversible. Caused primarily by long-term exposure to airway irritants, the disease process causes a number of very distinct, physiologic and structural lung changes that are responsible for the varying degree of COPD symptoms. Let’s take a closer look at four of those lung changes. Airflow Limitation Long-term exposure to airway irritants, such as tobacco smoke and air pollution, causes the airways to become swollen and inflamed, obstructing airflow to and from the lungs....

The various causes of ear pain are almost too numerous to count. This article will take a look at the most common causes and explore methods for managing pain related to individual conditions. Otitis Media (Middle Ear Infections) Otitis media is an infection of the middle ear. It is most commonly seen in children (often in infants and toddlers) but can occur in adults as well. Signs of this infection include pain that increases at night....

Milk lines, also known by the technical term ventral epidermal ridges, are precursors to the mammary glands and nipples. An embryo’s breasts begin to develop during the fourth week of the gestation period. The milk lines themselves appear by the sixth week. They arch down from the armpit to the groin on both sides. As the breasts continue to develop along the ridge over the chest, these lines eventually disintegrate, usually by about week nine of fetal life....

To monitor the spread of COVID-19, public health experts encourage widespread testing. But some people may be hesitant to test for COVID-19 for fear of having to isolate and miss work. Key Takeaways Some people may be hesitant to take a COVID-19 test for fear of having to miss work or isolate.Test hesitancy could increase the risk of transmission as states begin to lift mask mandates.Advocates say that workers should learn their rights and educate one another until there are substantial policy changes....

PainBloc24 is an over-the-counter topical pain reliever that can be used for minor aches and pains associated with arthritis, muscle strains, backache, bruises, and sprains. Studies have shown the ingredients in PainBloc24 are highly effective at reducing pain. It uses the highest concentration of capsaicin allowed by the FDA without a prescription. Different preparations of PainBloc24 include a roll-on, pain pen, and flexible tape. You may feel the pain-relieving effects of PainBloc24 within a few hours of your first use, however, pain relief builds with daily use....

Periorbital cellulitis is an infection involving the skin around the eye or the eyelid. It is also known as preseptal cellulitis. A periorbital infection can involve any tissue in the area until it reaches the bony socket. But once the bony tissue is involved, this becomes known as orbital cellulitis. Orbital cellulitis is more serious than periorbital cellulitis because it can quickly lead to vision loss if left untreated. While anybody can have periorbital cellulitis, it most commonly occurs in children under age 5....