CS1519 C# Invalid token '{' in class, struct, or interface member declaration

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class HD {
    public int health;
{
    // Start is called before the first frame update
    void Start()
    {
        DamagePlayer(10);
    }

    // Update is called once per frame
    void Update()
    {
        if (health <= 0)
        {
            Debug.Log("The player has died! health" + health);
        }
        else if (health >= 15)
        {
            Debug.Log("You have a lot of life");
        }
    }
    void DamagePlayer(int damage)
    {
        health -= damage;

    }
}
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class HD {
    public int health;
{
    // Start is called before the first frame update
    void Start()
    {
        DamagePlayer(10);
    }

    // Update is called once per frame
    void Update()
    {
        if (health <= 0)
        {
            Debug.Log("The player has died! health" + health);
        }
        else if (health >= 15)
        {
            Debug.Log("You have a lot of life");
        }
    }
    void DamagePlayer(int damage)
    {
        health -= damage;

    }
}

Remove the extra opening curly brace under the “health” field.

Oh my bad, I appreciate