Your body

Where ADHD and disordered eating meet, the pattern is more often bingeing, or bingeing and purging, than strict restriction. Restriction tends to travel with over-control, while bingeing travels with impulse and reward seeking.

This matters because the questions asked at assessment are usually the restriction ones, so a binge pattern can sit unnoticed for years. If you…

Most claims about food and behaviour rest on weak studies. The ones worth taking seriously give each person both the real thing and a dummy at different times, with nobody knowing which is which, so that hope and expectation cannot do the work.

The food colouring trials are the standard example. Around 150 children each received drinks containing a preservative plus one of two dye mixes, or…

The same brand of sweets is often made with plant based colours in one country and artificial ones in another. If a company can make it without the dyes elsewhere, the dyes are not essential to the food.

Nine artificial colours are approved in the US, and the volume approved for use rose roughly fivefold between 1950 and 2012. One of them, Red No. 3,…

Skin prick and IgE blood tests find real allergies. The IgG food sensitivity panels sold direct to families have not been shown to measure sensitivity at all, and they tend to come back with a long list of foods to avoid.

IgG antibodies mostly show that you have eaten something, not that it harms you, which is why the results look alarming and change so little when…

The studies linking pesticide levels to ADHD are tangled up with income, since families least able to buy organic differ in plenty of other ways too. If organic food is affordable for you, fine. If it is not, you are not failing your child.

In one study of 1,140 children, 94% had detectable pesticide in their urine, and ADHD was about twice as common among those with higher…

Put an actual number on it: how many coffees, teas, energy drinks and colas in a normal day. Without that number, your sleep problems, your anxiety and how well a medication is working are all being read against an unknown.

People underestimate this, partly because it feels embarrassing and partly because a large takeaway cup is often two or three servings. Count across…

Stimulants sharpen focus in almost anyone, so responding well to one does not confirm you have ADHD. The diagnosis comes from your history and how you function, not from a trial of tablets.

This cuts both ways. Someone can be handed a diagnosis on the strength of a good response, and someone else can be doubted because their response was…

Food and movement are powerful, and hardly anyone keeps them up as prescribed. So the question is not what works best on paper. It is what you will still be doing in six weeks.

Roughly a third of people follow a prescription exactly as it is written, and keeping to a diet or an activity plan goes worse than that. Which means…

Pick one small change and leave the rest alone. A full overhaul asks the most of you at the point when you have the least to give, and it usually collapses in the second week.

One change, small enough to be almost boring, kept for a month. Then another. It feels slow while you are in it, and it is the version that tends to…

Working out what you have comes before choosing what to take. The right remedy for the wrong condition is still the wrong remedy, however good the remedy happens to be.

The health food shop route usually starts with a self diagnosis, and that first step is the one worth slowing down. St John's wort will do nothing…

Supplements are regulated as food rather than as medicine. Nobody checks strength or purity before a product goes on sale, and the main rule is that the packet cannot claim to treat a disease.

Most people assume the opposite, that anything on a pharmacy shelf has been through some kind of approval. Regulators here generally act only once a…

When researchers ran DNA testing on 13 herbal products, only 2 contained the plant on the label. Three had none of it at all, and several were padded out with rice, soy or wheat that nobody had declared.

The obvious problem is paying for something you did not get. The quieter problem is the undeclared filler, which matters a great deal if you avoid…

A second study, this time of 44 products, found only about half were authentic. Roughly six in ten were mislabelled, three in ten contained a substituted ingredient, and one in five held contaminants or fillers.

One study of this kind is a story about some bad batches. Two independent studies finding the same thing is a description of how the market works.…

If you are going to buy supplements, look for an independent verification mark: USP Verified, NSF, or a product tested by ConsumerLab. It is the nearest thing available to the check that regulators do not carry out.

Those schemes test identity, strength, purity and how a product was made, and manufacturers pay to take part voluntarily. There are different tiers,…

St John's wort can cut the effectiveness of the contraceptive pill by around a third. If you take both, that is worth knowing today rather than finding out later.

It speeds up the way the liver clears certain drugs, so the pill is not the only thing affected. Warfarin, some HIV medicines, ciclosporin and a…

Several herbal products change how fast the liver processes medication, which can leave a prescribed drug either weaker or stronger without a single change to the dose.

This is often why a supplement looks like it caused a relapse or a sudden run of side effects. Nothing about the prescription changed, so the pattern…

Two to be careful with in particular. Yohimbe reliably ramps anxiety up, so much so that it has been used in research to bring panic on, and kava is a sedative that stacks with alcohol and with sedating medication and has damaged livers at higher doses.

Kava has been restricted or banned in several countries over liver harm, which tells you how seriously that risk is taken. Yohimbe is a poor choice…

You cannot patent a plant, so there is little commercial reason to fund expensive trials of one. When you read that a herb has no evidence, that often means nobody paid to look rather than that somebody looked and found nothing.

Both halves of that need saying. No evidence is not proof of no effect, and it is also not permission to assume one. It leaves you with an open…

Some of these do have real evidence behind them. St John's wort has repeated support in mild to moderate depression, SAMe and methylfolate have reasonable backing as additions to treatment, and omega-3 has looked weaker in the larger and better run trials.

That last part is worth sitting with, because it is what usually happens. An early promising effect shrinks as trials get bigger and better…

If you want to use herbal remedies, two things carry most of the risk. Make sure whoever prescribes for you knows what you are taking, and buy from a source that has been independently tested.

That is a short list on purpose. Nearly all the harm in this area comes from an interaction nobody knew about or a product that was not what it…

Herbal products are rarely covered by insurance and they add up quickly. That cost belongs in the decision, particularly when you cannot be sure the capsule holds what it says.

Money spent here is money not spent elsewhere, and often the alternative is a treatment that is covered and has been tested. Nobody is telling you…

What you feel does not stay in your head. Emotional states register in the body's immune signalling too, which is one reason a long stretch of unspoken distress can leave you physically run down.

This is not a claim that you can think yourself well or ill. It is closer to saying the body keeps a tally. If you have been carrying something heavy…

Water, sleep, food and digestion are not the boring preamble to the real work. When those are running badly, everything else you try has less to work with.

It can feel almost insulting to be asked about breakfast when what you carry is so much bigger than breakfast. But a body short of sleep and short of…

When digestion goes wrong there are usually two things to look at rather than one: something you are eating that does not suit you, and a body too braced to digest properly. Checking only one door tends to leave you stuck.

Digestion mostly happens when your body believes it is safe. If you eat every meal with your shoulders up round your ears, that alone can show up as…

A physical symptom is not a free floating fact. Read it next to what your life has actually held, the early parts included, and it often makes more sense than it does on its own.

This works in both directions. It stops you treating a body complaint as something random that landed on you, and it stops you treating it as a…

Saying a difficulty is in the past is not the same as saying it was never real. Sometimes a picture changes because something that was making it worse got taken away, and the honest words for that are neither cured nor imagining it.

People who have been disbelieved by doctors are very sensitive to this, and with reason. The choice usually gets offered as either it was all in your…

Months of fog, where thinking feels like wading, is a real complaint and deserves looking into rather than waving away. It usually has more than one cause, which is part of why it gets dismissed.

Fog sits where several things overlap: dissociation, anxiety, poor sleep, thyroid and iron problems, infections, medication. Because it belongs…

Five minutes of moving about sharpens concentration enough to notice. You do not need a session, you need a lap of the building.

Before a task you have been avoiding, get the blood going for five minutes. Stairs, a brisk walk to the end of the road, star jumps in the kitchen if…

It does not have to be one block. Ten minutes here and ten there add up to the same total, and they are far easier to get.

An hour set aside is an hour that one interruption can swallow. Bits scattered through the day survive better and they break up the sitting, which is…

Nobody sits down at a piano and plays Mozart the first afternoon. Set the bar at this week rather than at the finished version of yourself.

The stretch between starting and being any good is where most attempts die, because the reward sits a long way off and today feels like nothing.…

Give yourself an hour rather than a fortnight. A short window creates the pressure that gets a thing started, where a long one quietly fills up with everything else.

Two weeks of notice usually means the work happens in the last few hours anyway, with all the dread in between. So set a smaller box on purpose:…

When a child starts martial arts and their maths marks go up, the maths did not improve. Their attention did, and timed maths tests measure attention as much as arithmetic.

It is worth being clear about this, because the wrong reading sends people looking for a movement class that teaches numbers. What actually changed…

End a session with a few minutes of sitting still. The styles that close with quiet seem to help most with the pause before reacting.

That pause is the couple of seconds in which you get to decide whether something is a good idea. It is trainable, and stillness right after exertion…

Do not stop dead. Give the end of anything energetic a few minutes of winding down, so the change of gear is a routine rather than a demand.

Stopping is a transition, and transitions are where things fall apart for a lot of people. A short unwinding phase, the same one every time, takes…

A promising study can be very small. Thirteen teenagers, teachers doing the rating, and a fortnight of follow up is a good start and not a settled answer.

The clever part of that design is the follow up, because it asks whether anything survives after the classes stop, which is where a lot of attention…

The lift from a morning run does not last all day. It fades by the afternoon, which is information about when to move rather than a sign it failed.

People often notice they are sharp through the morning and gone by three. If your hardest hours are later, put some movement in before them: a walk…

Move just before the difficult task, not after it as a reward. Five minutes of skipping, stairs or running on the spot, then sit down to the thing.

The window straight after moving is when focus is at its best, so that is the bit worth spending on whatever you have been dreading. For a child,…

Moving first does not only help you concentrate. It takes some of the heat out of being stuck, which is often the thing that ends the task.

For a lot of people the problem is not the maths, it is what happens inside them when the maths does not come immediately. That surge of frustration…

Almost nobody needs convincing that exercise helps. The gap is between knowing it and doing it, so spend your effort there.

More facts will not close that gap. What closes it is arranging things so the session happens with fewer decisions in the way: kit by the door, a…

Chasing the big hit is a trap. Aim for the quieter satisfaction you can have most weeks, because that is the one that lasts.

If you are built to seek out intensity, exercise can turn into another place to chase it: further, faster, more extreme, until you are injured or…