WINNING THE RACE AGAINST YOUR BODY

The Reality No One Talks About

Offshore racing is not won on tactics alone.

It’s won — or lost — in the human system.

The skipper who can’t eat. The trimmer who hasn’t slept. The navigator vomiting over the chart table.

That’s where races unravel.

In a 200–600 mile Royal Ocean Racing Club races race, your biggest enemy is rarely the fleet.

It’s your physiology.

1. What Seasickness Actually Is (And Why It Destroys Performance)

Seasickness is not weakness. It is a neurological conflict.

The Mechanism (Medically Established)

• Your inner ear (vestibular system) detects motion

• Your eyes may see a static environment (e.g. inside the boat)

• Your brain receives conflicting signals

This creates what is known in neurophysiology as sensory mismatch.

The result:

• Nausea

• Vomiting

• Cold sweating

• Loss of coordination

• Cognitive impairment

From an evolutionary perspective, your brain interprets this conflict as neurotoxin ingestion — and triggers vomiting as a defence mechanism.

Performance Impact Offshore

Seasickness leads to:

• Up to 80% reduction in physical output

• Severe dehydration

• Decision-making collapse

• Increased risk of hypothermia

In short: A seasick crew member is effectively out of the race.

2. The Inner Ear, Balance, and Why Some Sailors Suffer More

The vestibular system consists of:

• Semicircular canals → detect rotation

• Otolith organs → detect linear acceleration

In offshore conditions:

• Constant wave motion = continuous vestibular stimulation

• Irregular motion = maximum sensory conflict

Why Some People Are More Susceptible

Key factors:

• Genetics

• Inner ear sensitivity

• Previous exposure

• Anxiety levels

• Sleep deprivation

Interestingly:

Experienced sailors are less affected not because they are immune, but because their brain adapts.

This is called habituation.

3. The Drug Reality – What Actually Works

There is no perfect drug.

Everything is a trade-off between:

• Motion suppression

• Alertness

• Side effects

A. Hyoscine (Scopolamine) – Kwells / Patches

Mechanism of Action

• Blocks muscarinic acetylcholine receptors

• Reduces vestibular signalling to vomiting centre

Pros

• One of the most effective anti-motion sickness drugs

• Fast acting (tablets)

• Long-lasting (patches)

Cons

• Dry mouth

• Blurred vision

• Drowsiness

• Cognitive slowing

Offshore Consideration

Very effective — but can impair performance in navigators / tacticians.

B. Cinnarizine (Stugeron)

Mechanism

• Calcium channel blocker

• Reduces vestibular sensitivity

Pros

• Highly effective for motion sickness

• Widely used by sailors

Cons

• Drowsiness

• Slower reaction time

Practical Use

Common choice in offshore sailing — but test before racing.

C. Promethazine (Phenergan)

Mechanism

• Antihistamine

• Suppresses vomiting centre

Pros

• Very strong antiemetic

Cons

• Heavy sedation

• Performance impairment

Verdict

Emergency use — not ideal for racing

D. Ondansetron (Zofran)

Often misunderstood.

Mechanism

• Serotonin (5-HT3) antagonist

Critical Point

Ondansetron does NOT prevent motion sickness.

It only suppresses vomiting.

So:

• You may still feel nauseous

• But stop vomiting

Best Use Offshore

Secondary rescue drug

E. Cyclizine (Valoid)

Mechanism

• Antihistamine

• Reduces vestibular stimulation

Pros

• Effective

• Less sedating than promethazine

Cons

• Still causes drowsiness

Offshore Use

Strong option if well tolerated

F. Meclizine (Bonine)

Less common in UK, more US-based.

Pros

• Long acting

• Effective

Cons

• Sedation

The Real Offshore Strategy (Not Medical Advice)

The mistake sailors make:

Taking medication after symptoms start

By then:

• Gastric absorption is reduced

• Vomiting may prevent absorption

Better Approach

• Take medication 1–2 hours before departure

• Test during training

• Avoid first use during racing

The Performance Trade-Off

This is critical for racing:

Drug | Effect | Racing Impact

Hyoscine | Strong | Medium sedation

Cinnarizine | Strong | Moderate sedation

Cyclizine | Strong | Moderate

Promethazine | Very strong | High sedation

Ondansetron | Vomiting only | Low sedation

For helmsmen, navigators, tacticians:

Sedation can be as damaging as seasickness

4. Fatigue – The Silent Race Killer

Fatigue affects:

• Reaction time

• Decision-making

• Risk perception

• Coordination

Studies show:

17–19 hours awake ≈ 0.05% blood alcohol impairment

That is effectively legally impaired in many countries.

5. Energy Management – The Offshore Fuel Strategy

Your brain consumes approximately:

20% of total energy

Offshore racing adds:

• Cold exposure

• Constant muscle activation

• Sleep deprivation

What to Eat

• Slow-release carbohydrates

• Protein

• Healthy fats

What to Avoid

• High sugar spikes

• Heavy meals

• Excessive caffeine

Why This Matters

Blood glucose instability = cognitive instability

The Rule: Fuel Light, Fuel Often

Optimal Intake

Every 2–3 hours

Hydration

• Small amounts frequently

• Electrolytes in warm conditions

6. Caffeine – Why You Should Be Careful

Caffeine improves:

• Alertness

• Reaction time

But:

• Increases dehydration

• Can worsen seasickness

• Creates crash cycles

Tactical Use Only

Best used before critical phases (night shift, finish approach)

7. Temperature Regulation – The Hidden Performance Lever

Your body burns enormous energy maintaining core temperature.

Overheating → dehydration → nausea

Cold → energy drain → cognitive decline

The Offshore Layering System

• Base layer → moisture control

• Mid layer → insulation

• Shell → wind/water protection

Key Rule

Never allow yourself to get cold.

8. Sleep – The Most Underestimated Weapon

Fatigue compounds exponentially.

After ~24 hours:

• Risk-taking increases

• Communication deteriorates

• Errors multiply

Watch System Matters

Common offshore systems:

• 3 on / 3 off

• 4 on / 4 off

• Rolling watch

Sleep Strategy

The biggest mistake:

Waiting until you are tired to sleep

By then it is too late.

8. How to Actively Prevent Seasickness During Racing

Proven Techniques

1. Stay on Deck Early → Reduces sensory mismatch

2. Look at the Horizon → Aligns visual + vestibular input

3. Stay Active → Passive crew get sick faster

4. Avoid Down Below Early → Highest trigger environment

5. Control Breathing → Reduces nausea response

9. Extreme Cases – What Actually Happens

In severe seasickness:

• Continuous vomiting

• Inability to eat or drink

• Rapid dehydration

• Loss of decision-making ability

In offshore conditions:

This becomes a safety issue — not just performance.

10. The FirstBeat Offshore Rule

This is the takeaway:

You cannot win offshore if your body is losing.

Final Framework (Simple and Brutal)

Before the Race

• Eat clean

• Hydrate

• Medicate early

First 6 Hours

• Stay on deck

• Stay active

• Avoid going below

During the Race

• Eat little and often

• Hydrate constantly

• Manage temperature

Fatigue

• Sleep early

• Sleep properly

• Protect recovery

Closing Thought

The best offshore sailors are not just tacticians.

They are physiological managers.

They understand that:

• Energy is finite

• Focus is fragile

• The body will fail before the boat does

And they prepare accordingly.