"Is this normal?" is the single most common question underneath every worry a parent has about development, and the honest answer is that the range of normal is wider than most baby apps and milestone charts suggest. Children reach milestones in moving, playing, speaking, thinking and relating to others at genuinely different rates, and being a little behind in one specific area, on its own, is frequently not a sign of anything beyond ordinary variation. What actually matters far more than any single milestone is the pattern across several areas together, and whether a delay is isolated or affecting more than one domain at once.

Most young children have several ear infections before the age of five, and most need nothing more than time, pain relief and, occasionally, antibiotics. Ear infections cluster in early childhood because a young child's Eustachian tube is shorter and more horizontal than an adult's, making fluid and infection easy to get in and hard to get out. The question that actually matters is not how many infections your child has had, it's whether fluid is persisting between infections and whether it's affecting hearing.

Dry, itchy, red patches on a child are usually eczema, and eczema is usually not caused by a food allergy, which surprises most parents. Atopic eczema affects around 1 in 5 children in the UK at some point, typically starting before the age of 2, and it is a skin barrier problem, not primarily an immune reaction to something eaten. That matters, because it means cutting foods out of a child's diet on suspicion, without proper testing, rarely clears eczema and can create new nutritional problems instead.

Abdominal pain is one of the most common reasons people seek medical attention, but it can also be one of the most difficult symptoms to interpret from location alone. Pain in a similar part of the abdomen can arise from completely different organs, which means choosing the right investigation matters as much as getting the investigation quickly.

Medical weight management has changed significantly in the past few years. Modern treatments can influence the hormonal pathways involved in appetite and fullness, which is one reason medically supervised weight loss can produce substantially different outcomes from attempting calorie restriction through willpower alone.

IV therapy has become one of the most visible wellness treatments in London, and also one of the easiest to overstate. The underlying principle is fairly straightforward: nutrients and fluids taken by mouth have to pass through the digestive system before entering the circulation, and the amount absorbed varies according to the nutrient, the dose and the individual.

Every year, travellers are turned away at the gate not because they are necessarily unfit to fly, but because they are carrying the wrong paperwork, or none at all. Most passengers never need medical documentation to board a commercial flight. But pregnancy beyond a certain gestation, recent surgery, a recent fracture or plaster cast, a recent heart attack, stroke or blood clot, and a range of other medical conditions can trigger an airline's medical clearance policy.

A comprehensive biomarker panel has become one of the most talked-about tools in preventive medicine, and also one of the most inconsistently priced.

A private GP consultation for a child gives you unhurried time with a GMC-registered doctor to assess an illness, discuss an ongoing concern, get a referral moving faster, or get a second opinion, either in person or by video.

A proper executive health screen for a man over 40 checks cardiovascular and metabolic risk first, not just testosterone. It should cover blood pressure, a formal cardiovascular risk score, ApoB and Lp(a), glucose regulation, and an informed decision on PSA, with imaging added only where it changes the answer. London prices run from around £1,000 for a conventional check to £14,000 for imaging-led programmes. At The Wellness, doctor-led assessments start from £3,495.

Internationally, the top end goes further still, with longevity memberships now advertised at $100,000 a year. The important question is therefore not how much a longevity programme costs. It is what the money actually buys, which parts are medically useful, and whether the results lead to a plan you can act on.

Most of a one-day executive health screen, bloods, examination, ECG and selected imaging, can be coordinated into a single London visit, though some lab and radiology reports take longer and are folded into the final physician review. London pricing runs from around £1,000 for a conventional check to £14,000 to £15,000 for imaging-heavy programmes. At The Wellness, the Executive Health Programme starts from £11,995.

The Wellness arranges independent second medical opinions in London from £1,495, covering a full review of your records and imaging by a GMC-registered doctor, coordination of a specialist opinion from a named consultant outside the team that made the original recommendation, and a written summary you can act on

The Wellness arranges independent second medical opinions in London from £1,495, covering a full review of your records and imaging by a GMC-registered doctor, coordination of a specialist opinion from a named consultant outside the team that made the original recommendation, and a written summary you can act on. Seeking one is not a criticism of anyone. It is standard practice in serious medicine, and the published evidence supports it.