What to Know About the Different Types of Color Blindness

Color blindness, or color vision deficiency, refers to the inability of a person to correctly distinguish certain colors. Many people mistakenly believe that to be color blind is to view the world in only black and white, but complete color blindness is rare. A color-blind person usually has problems distinguishing certain colors, mistaking them for the same color. In our eyes, there are cells known as cones that help us differentiate colors....

January 17, 2025 · 12 min · 2345 words · Heather Thomas

What to Know About the Duodenum and Conditions That Affect It

Table of ContentsView AllTable of ContentsAnatomyFunctionAssociated ConditionsSymptomsDiagnosis Table of ContentsView All View All Table of Contents Anatomy Function Associated Conditions Symptoms Diagnosis Theduodenumis the first section of the small intestine. Roughly 8 to 10 inches in length in adults, the duodenum receives partially digested foods from the stomach and exposes them to digestive enzymes that break them down even further. The duodenum is vulnerable to certain diseases that can affect its function, including ulcers, celiac disease, and cancer....

January 17, 2025 · 5 min · 1002 words · Taylor Acevedo

What to Know about the Free Thyroxine (T4) Index Test

Table of ContentsView AllTable of ContentsPurposeRisksBefore the TestDuring the TestAfter the TestResults Table of ContentsView All View All Table of Contents Purpose Risks Before the Test During the Test After the Test Results The free thyroxine index (FTI) test, also called the T4 index test, is a blood test used to diagnose thyroid disorders. Thyroxine (T4) is a thyroid hormone. The test measures how much thyroxine is in your blood to help determine whether your thyroid gland is underactive (hypothyroidism) or overactive (hyperthyroidism)....

January 17, 2025 · 11 min · 2207 words · Casey Nicholson

What to Know About the LB.1 COVID-19 Variant

Key TakeawaysLB.1 is the latest COVID-19 subvariant to emerge in the U.S.Current rapid tests and treatments like Paxlovid are still effective, and updated vaccines in the fall should offer sufficient protection. Key Takeaways LB.1 is the latest COVID-19 subvariant to emerge in the U.S.Current rapid tests and treatments like Paxlovid are still effective, and updated vaccines in the fall should offer sufficient protection. An emerging COVID-19 subvariant named LB.1 now makes up 17....

January 17, 2025 · 4 min · 711 words · Michelle Bennett

What to Know About the McDonald's E. Coli Outbreak

Key TakeawaysInvestigators are looking into anE. colioutbreak linked to McDonald’s Quarter Pounders, with 49 people sick and 10 hospitalized so far.McDonald’s has stopped using slivered onions and Quarter Pounder beef patties while investigators figure out what caused the contamination.E. coliinfections can cause serious symptoms like diarrhea and vomiting and, in some cases, lead to dangerous complications like kidney damage. Key Takeaways Investigators are looking into anE. colioutbreak linked to McDonald’s Quarter Pounders, with 49 people sick and 10 hospitalized so far....

January 17, 2025 · 4 min · 681 words · Catherine Morgan

What to Know About the Multiple Sclerosis Diagnostic Criteria

Table of ContentsView AllTable of ContentsTypes and SymptomsTimely DiagnosisTestingThe McDonald CriteriaDiagnosis TimelinesAfter the DiagnosisFrequently Asked Questions Table of ContentsView All View All Table of Contents Types and Symptoms Timely Diagnosis Testing The McDonald Criteria Diagnosis Timelines After the Diagnosis Frequently Asked Questions Diagnosingmultiple sclerosis(MS) can be challenging. A combination of symptoms, lab tests, and exams need to be measured against a specific set of criteria known as the McDonald criteria for doctors toreach a diagnosis....

January 17, 2025 · 14 min · 2821 words · Pedro Ramos

What to Know About the NuvaRing and Pregnancy Prevention

Table of ContentsView All View All Table of Contents How NuvaRing Works Contraceptive Benefits Other Benefits Drawbacks Side Effects Precautions Cost When to See a Provider The NuvaRing is ahormonal prescription birth control. You insert it into your vagina for three weeks, then remove it to take a break for one week, and then insert a new ring to restart the four-week cycle. NuvaRing is a brand name, and it’s not the only vaginal ring birth control available....

January 17, 2025 · 13 min · 2592 words · Natalie Simpson

What to Know About the Omicron XE Variant

Key TakeawaysXE is a recombinant variant that has characteristics of both the BA.1 and BA.2 strains of the Omicron variant.More than 600 cases have been reported in the United Kingdom since January.XE may be more transmissible than BA.2, though experts say it’s too soon to know for sure if it will be more infectious and severe than existing variants. Key Takeaways XE is a recombinant variant that has characteristics of both the BA....

January 17, 2025 · 5 min · 913 words · Jose Parks

What to Know About the Smallpox Vaccine Scar

Table of ContentsView AllTable of ContentsWhy Smallpox Vaccine Can Cause a ScarSmallpox vs. BCG Vaccine ScarSmallpox Vaccine for MpoxHow to Heal Scars Table of ContentsView All View All Table of Contents Why Smallpox Vaccine Can Cause a Scar Smallpox vs. BCG Vaccine Scar Smallpox Vaccine for Mpox How to Heal Scars In the United States, routinesmallpoxvaccination ended in 1972.Due to the success of the vaccine, smallpox was eradicated globally in 1980....

January 17, 2025 · 5 min · 1057 words · Samuel Campbell Jr.

What to Know About the Specific Carbohydrate Diet (SCD)

Table of ContentsView AllTable of ContentsHow SCD StartedHow SCD WorksWhat to EatFoods to AvoidHow to StartConditions AddressedChallenges and Risks Table of ContentsView All View All Table of Contents How SCD Started How SCD Works What to Eat Foods to Avoid How to Start Conditions Addressed Challenges and Risks The specific carbohydrate diet (SCD) is an eating plan that restricts complex carbohydrates. It was first developed many decades ago for the management ofceliac disease....

January 17, 2025 · 16 min · 3237 words · Matthew Wood

What to Know About the Tensilon Test

Table of ContentsView AllTable of ContentsPurposeTestProcedureResultsWhy the Test Was DiscontinuedAlternative Testing Table of ContentsView All View All Table of Contents Purpose Test Procedure Results Why the Test Was Discontinued Alternative Testing Read on to learn more about how the test worked and what is currently being used to diagnose myasthenia gravis. Verywell / Alexandra Gordon Purpose of the Tensilon Test The most common reason to have a Tensilon test was to differentiate between myasthenia gravis and other conditions that caused weakness....

January 17, 2025 · 6 min · 1241 words · Annette Scott

What to Know About the Third (S3) Heart Sound

Table of ContentsView AllTable of ContentsAbout S3CausesHeart Failure TreatmentOther Heart SoundsMonitoring and ManagementWhen to See a Provider Table of ContentsView All View All Table of Contents About S3 Causes Heart Failure Treatment Other Heart Sounds Monitoring and Management When to See a Provider A third heart sound, or S3, is a low-frequency, extra heart sound that may be heard with a stethoscope right after the normal S1 and S2 heart sounds....

January 17, 2025 · 8 min · 1505 words · Michael Singleton

What to Know About the TikTok Mouth Taping Trend

Key TakeawaysA new viral trend on TikTok that involves taping your mouth shut at night claims to improve sleep and other health conditions like bad breath, cavities, and brain fog.Experts say that while nose breathing while you’re sleeping can have health benefits over mouth breathing, taping your mouth shut is not the answer.Mouth taping can be risky for people with breathing problems and certain health conditions like obstructive sleep apnea (OSA)....

January 17, 2025 · 7 min · 1341 words · Jamie Padilla