I'm having a bad day. I'm late for the office and the traffic lights always work against me.

At last - get off your mobile phone and make a move please, madam, the lights won't get any greener.

Oh no, not more road works. Let's take a short cut and zip down here.

Oops, watch out, kids, I'm in a hurry! And there's no need to gesticulate, owner of the blue Laguna, it wasn't my fault I had to slam on the brakes.

Thanks very much and the same to you, too, sir.

If you keep tailgating me, I shall drive even more slowly.

Stop flashing your lights and tooting. Can't anything be done about these raving road maniacs . . ?

If the above sounds familiar, listen up.

The pressure of having to balance domestic responsibilities with an increasing workload is taking its toll on our behaviour and self-control.

We hear about trolley rage in supermarkets, lane rage in swimming-pools and temper tantrums on planes but aggressive drivers are the most worrying of all because they are increasingly common and cause so many accidents.

Is there anything you can do to reduce your road rage quotient?

You could try therapy. Or you could try holding up a very large SORRY sign you made earlier and conveniently keep in the car in case of any explosive and potentially dangerous escalations.

However, it might be altogether kinder on your health and your pocket not to get so wound up in the first place.

What about a natural "chill pill" that helps to reduce stress levels so you can handle situations that might otherwise provoke a significant stress response?

There is one and it's called 200mg Of Zen. It contains the neurotransmitter amino acid GABA (gamma-aminobutyric acid) which is critical for normal brain function and helps us to relax and focus on the job at hand.

Research has shown that alterations in the levels of GABA - commonly brought on by stress or nutrient deficiencies - can have a significant impact on our mood and emotional status, as well as coordination.

The other ingredient in 200mg Of Zen is L-theanine, an amino acid derivative found naturally in green tea.

In Asia, green tea has been used for thousands of years to promote longevity and improve mental function.

Human studies have demonstrated that L-theanine increases alpha wave activity in the brain, promoting a state of relaxation such as is often achieved during meditation.

Anxiety is said to be reduced and mental alertness and acuity increased within 30 to 40 minutes of taking the supplement.

200mg Of Zen does not encourage dependency and won't make you drowsy.

Although no pill could claim to be the perfect panacea or even a substitute for stress management in the long term, it can be useful for unavoidable strains, such as long car journeys during the rush hour.

Take one (between meals) to maintain your equilibrium and stay alert.

Bye, bye road rage and hello ommm.

200mg Of Zen costs £16.10 for 60 caps plus £1 p&p.

To order, contact The Nutrition Clinic, 1 Harley Street, London W1G 9QD. Telephone 0207 589 4394 or fax 0207 589 9186.

Martina is a qualified nutritionist at the Crescent Clinic of Complementary Medicine, 37 Vernon Terrace, Brighton. Tel: 01273 202221 or email: martina@thehealthbank.co.uk